I am kinda 70% done now with all the grammar on Bunpro… At 2/3 points I did struggle:
I used to study just “digitally” and add grammar points on Bunpro - Unfortunately that did not work for me. I reset my account. Ie figure out what works for you and spend some time experimenting to figure out how you learn more effectively.
Give yourself a break. Forget about reviews. Just take a break. For a week… Maybe more if necessary. Maybe after a some time, try to do some of the reviews (so they don’t over pile too much). Just not all!!! Like 10%/20% per day… And slowly pick up the pace over time.
Eg 30 reviews per day are fine. So when I start having 15 per day, I would add a grammar point.
Everybody has their SRS daily review limit
Use Japanese, read a manga / light novel, play games in Japanese, watch anime… Don’t worry about learning new things for a time.
This may be weird thing but slowly try to rewrite your grammar notes using Japanese only? There are lots of websites like https://nihongokyoshi-net.com/ and books like Kanzen Master + Bunpro to make the whole process quite fun.
Hope this wall of text is helpful…