what do you do when the strategies and coping mechanisms that have been helpful aren't working as well as you'd like?
I find something else! There are a lot of strategies and coping mechanisms out there and I think it's a bit of trial and error to find something that works for you. I always find that it's best to brainstorm these when you are in a better place so that you're not feeling like your toolbox is empty when you need them.
I also think that even though it's a bit contradictory, sometimes I do just 'call it a day'. There will always be days where we feel like we can't cope, and that's okay. If on your bad days, you just need to play video games or watch YouTube, that's fine too.
Of course, the other thing is to have a chat with your therapist! They might have some ideas and things you can try.
Does the medication you are prescribed affect you intellectually, physically or cognitively?
I've been very lucky with the medication/s I'm on and haven't noticed anything really that significant. Having said that though, beforehand some of the medications I've tried have either made me sleep all day, vomit, hallucinate, have suicidal thoughts - you name it, and I've probably had it!
Sidenote: there's a thread in the young people section about studying tips/motivation which you can look at, or you can search 'motivation' , 'fatigue' etc to find some other strategies there. I've struggled a lot with those things as well.