Discouraged

Get back on it! Speaking as someone who lost 80# and then gained it aaaaalllll back (with some friends, apparently) I really, truly wish that I caught myself before backsliding all the way.
Set yourself a plan, remember what worked, set achievable goals, maybe set yourself a reward if that works for you.
Also, maybe go back and look at some photos of your "before", dig out some "before" clothes, and give yourself a bit of a reality check on what it might mean if you go back to old habits and gain it all back. Trust me - it's not a good feeling!!

I lost 50 lbs last year and have spent the last seven months basically being in maintenance (up a few, down a few, but basically the same) for health reasons and now I'm starting to get back to active weight loss.

When I'm tempted to go back to my old way of eating, that's when I really have to key in on what I want out of life and be honest about where those choices will lead me. The poster above who talked about getting old 'before' pictures and clothes is right on the money. I also look at old journal entries where I talked about my struggles being overweight. I look at everyday things I can do now that I couldn't 50 lbs ago, like walking up flights of stairs, running, and fitting comfortably in my clothes. Then, I think of all the things I still want to do (be visibly muscular, complete a marathon, be under 200 lbs, etc) and accept that my old way of eating doesn't benefit me the way it used to anymore.

After that, I just focus on actions that serve my goals. I start drinking more water and less soda, downgrade my burger combo to a small instead of a large, start cooking more at home, add more fruits and veggies, take my vitamins, sleep enough, start doing little pockets of exercise throughout the day. I do those things because, mentally, I'm clear on how and why I should do them.

It's not easy, but I think getting your mental house in order around weight loss helps a lot. I would argue that it's the most important thing. After all, your body cannot follow where your mind doesn't lead. I hope that helps and that you know that we're all rooting for you. Good luck

Meal prepping goes a long way to making better choices in advance. The day before you go food shopping, find some meal prep videos on YouTube, and write down a few in your phone notes app. Grab the ingredients when you go shopping, and set aside the time to make at least 2 of them in advance.

If you're struggling during breakfast time, make sure you have that prepared the night before, so you can eat it either straight from the fridge, or a short time in the microwave.

If snacking is your problem, try and eat a bigger portion, but within your deficit, to not feel the need to have small snacks. Also, popcorn is only 100-110 calories, and makes for a great end of night snack.

Also, check out this website for meal prep

https://mealprepmanual.com/

Coming to MFP is a great way to get started. From here it's all about logging daily and reading the helpful postings here in the forums. Best wishes...