Other than yourself, who is your biggest supporter?

My friend, Nicole!

Super Trainer!!!! I have no spouse or kids (not for lack of trying, but apparently the male population around here has absolutely no interest in the likes of me) and my parents live 3.5 hours away, so no family nearby to support me
Almost 6 years ago I lost my best friend to stage 4 colo-rectal cancer (her second round) and really floundered for friends (have discovered that I have some of the greatest friends over the past 6 years, and in the past 2+ two of them have stood out and are the closest that I've had to my best friend.) Then just over two years ago I joined Lifestyle Family Fitness and met this really vibrant Les Mills Combat instructor. When I decided to look into some personal training, on the advice of another instructor, I decided not to work with the personal trainers at the gym (apparently LFF charged $30-50+ per hour and the trainers only received about $12, didn't seem right and I'd rather the trainer get the bulk of the money), so I asked the Combat instructor about this as we had started to become friends, she told me on the down low that LFF was being bought out by LA Fitness and they were not being kind to the Les Mills instructors (all the LM people were fired when LAF took over at the location I was at) and that another instructor was opening his own gym where she was going to be offering personal training. Well I became her first training client and we've become fast friends.
She has been there through the worst: the first year of training with her I gained (yeah, I said GAINED) 40 lbs, she supported me through the tears, frustration, and anger. Even through the moments of being ready to give up because we couldn't figure out why all the exercise and eating right wasn't working. If I didn't show up for class I got a phone call (still do) to check on me, when I was down, she tell me we just have to find the right key, let's try this, there's got to be something going on. Every fail was met with an attempt to solve. When I went to an endocrinologist, she called before my appointment was over to see if I had answers (not yet at that time since I still had lab work to get done now that the doc knew what the background was), we cheered when we found out that I really did have something wrong with me (how sick is that? we're happy that I have something wrong???) and now we're seeing extremely slow progress (I'm hypothyroid and insulin resistant, just got stabilized on all the meds in the past few months), but we're seeing progress! And she's still my biggest cheer leader and always reminds me that I found my "roar"

My son (the kid I have in a headlock). He is always so proud of me and has even started running with me, we did our first 5k (we walked and ran) together this weekend.

That's amazing, my daughter did 2 5k's with me last year-- we did the color run and neon splash dash! They were fun, this year we are doing the Texan's Bulls on Parade 5k and maybe another color run! We never run the whole thing, but we did set a goal to finish faster each time. I believe we walked/jogged the first one in 45 mins and the 2nd one only took us 30 mins! We were so happy and tired!

We did the Neon Dash this weekend!! He told me he was going to start looking for other runs he thinks would be fun to do

My husband and son are my biggest supporters.
My hubby got me a food scale I lusted after but didnt ask for out of fear he would think I was obsessing over food. He said, Hey I looked up macros and you need a scale. He got one for me in my fav color, red. I attribute all of my recent fat loss and muscle maintenenace to that man and that food scale.
My son, he is the best! Someone who knew me when I was 190lbs said "Hey you're skinny now!" My son said "No my mom isnt skinny! Show her your guns mom!"
I am very sensitive about my size right now though I weigh more than you think I would just looking at me, I wear a size 4. My son stuck up for me. I love that kid

A long distance friend. He just absolutely motivates, praises and encourages me at every turn. I would be lost without him.

Honestly (and this may be sad), I'd say online communities such as MFP, Livestrong and Instagram.

My boyfriend is sort of my personal trainer but more of just a gym buddy really. I do a lot of the gym on my own and have rarely gone to his gym recently. He supports me in theory and with exercise. But since he is bulking and I am cutting, he doesn't fully support me on my eating habits as much as I'd like him to. For example, going out to eat he's asking if I want an appetizer. He should know I shouldn't have one. Or he'll want me to grab drinks after a perfectly macro'd day. I want someone who respects how I have things planned and I don't want to deviate. If I know we're going out for dinner or drinks then I will accommodate that.

In terms of friends, I started my "healthy living" journey at the same time as two other friends. We decided to do it together originally but they have fallen off. I try to tell them some information I have learned but not in an arrogant way because there is a lot I don't know (for example, just tried to explain macros and net calories and share recipes to help them out). I feel like 1.) they don't want to hear it 2.) they secretly want me to fail and 3.) when they were living healthy with me and whenever they start again that they feel it is some sort of competition.

So yes, my biggest support has come from online communities especially from Instagram receiving and returning support from/to complete strangers.