[advice needed] Budgeting with depression and ADHD

Hello everyone, I come to you in times of need.
I've [NB, 31] had severe money issues for a year and a half, and I can't seem to be able to budget properly. I need some tips and tricks … And to be held accountable, if possible, for the upcoming month.

As stated in my title, I've had pretty bad depression for a while. Long story short, I'm a 2D Animator living in France. My pay is pretty good.
I was terminated in november of 2024 from a job I loved and since then, I haven't been able to keep it together financially.
I found another job, but it just hasn't worked out for me, I keep living above my means and I need to stop, but I don't know how to do it.

The thing is, and I'm sorry if it's off-topic, my depression makes it very hard to see past the next week, so I always tell myself, what's wrong with a little treat ? And it just so happens to be little treat after little treat, and I never stop. It sounds like an excuse, but it's really what is happening.

I'm working on it and going to therapy but I'm really ashamed of my situation as I feel like I'm just failing at adulting altogether, and I'm tired of the judgement of my surroundings (even my therapist lol) and of asking for help. I just. I gotta make it.

Thanks in advance, I'll take any advice. Please don't judge me.