Can I substitute abstaining from meat on Friday?

So I have an ED thats sensitive around food. usually during Lent I just happily relapse into it, mainly cause the fast and the no meat thing kinda just triggers me. To avoid that EVERY Friday, I’ve subsituted “no meat” for a different penance (Usually no doomscrolling, as I’m suspected OCD and tbh not doomscrolling is a lot harder for me than not eating meat.). Is this valid? sorry if I’m kind of incomprehensible