Is it me or does self care seem really fun when you start then it gets extremely daunting to do the bare minimum?

I as a 28m who got diagnosed late, and take adderal 10mg ER every day, find self care to be really fun when I start it. I get uber excited, I buy a lot of products. I watch videos on YouTube on how to do a skin care routine. self care has been preached my therapist as a way to help yourself before you help others. I would take my morning walks and during lunch. I would shower extra long with the best scrubs, body washes, use 3-4 skin care products. hairmasks since I have long hair. now, after a few weeks, I feel burnt out from doing it. I don’t want to do the bare minimum basics to even up keep my personal hygiene. not to be gross, but even crushing my teeth for a min seems like a lot. I’m struggling with this. because this has been a pattern of mine for years, probably my whole life. can anyone share tips on how to overcome this. please and thank you.