I promised to post in this and upto now i didnt know what to say.
DanutsinYoeye's post is like perfect. It examines all the problems that one can have. Im another player who's had a rough ride recently. I too kat lot of time off both for personal and education reasons and simply i think i needed it. Id played a lot in not a long time and may have been burnt out.
So then i go win 1.4k in a week!
I think confidence is the issue in most cases and so is that feeling of not belonging. Pretty much ive always had one eye on how you've been doing, that just seemed to occur.
So i'd go wit hthe advice here. Go right back to the basics. Take away that money so its not an issue and go back to the grind. No matter what that is.
I think you'll be fine and i think also that getting some of the experienced player to watch you when you move back up again may help to improve you even more. You can play ive seen it and its been mentioned. It may just be that you need to add a little thinking to youre game to take it to that next level. That seems to have worked for me.