I need help =[

Hello everyone. I'm a 22 year old female who is 5'2" and usually weighs in around125. I know that that's not that bad, and I'm sure some people will say "I wish I was that light", but I'm not happy with my weight and I am REALLY not happy with my unhealthy habits.

Here are some things that are hindering me:
- My family has serious addiction problems. All my great grandparents used to be alcoholics, but then they found religion so they replaced alcohol with food. Now, my family is incredibly unhealthy. They eat unhealthy food compulsively and always tell me I am too skinny.
-I used to be about 20 pounds heavier when I was a preteen. I ate very unhealthily as a child, and my mother gave me a lot of ice cream and mac n cheese and those sorts of things.
- In high school, I developed an eating disorder and an obsession with exercise. I would be at the gym for at least two hours a day, at least five days a week, and I always wanted more.
- I overcame these things for a while, only to relapse. It got to the point where I was biking several miles to the gym to work out for a few hours and then biking to work. I was obsessed.
- When I was nineteen I had a traumatic experience which actually turned my life around for the better, and now I'm married and happier than I have ever been.
- When I lived in an apartment with my husband, I would take our puppy on at least three 20 minutes walks a day and lost ten pounds (while eating healthily). Now that we live in a house, I don't exercise that much and gained the ten pounds back.
- Because of this, I decided to take up jogging last Tuesday and jogged Tuesday, Thursday, and Friday. I weigh myself every Saturday, and realized I had gained four pounds. I figured it was water weight, but I weighed myself a couple days later and it was the same. It doesn't sound like a lot, but considering I only weigh 125 lbs. it feels like it is.

I know you are supposed to give it a few weeks, but I'm suddenly very discouraged. I've been eating very poorly (I didn't even go on MFP for a few days because I didn't want to admit what I had eaten) and I've just lost motivation. Couple that with the pressure of getting ready for bikini season (which is completely self-inflicted), and I'm just overwhelmed. My husband, who has the most incredibly metabolism, doesn't get it and thinks I look great, which is nice but not very helpful.

So basically... I need help. I need some positive encouragement and some more friends so that I can look at all of their healthy choices and be encouraged to be healthy too!