Hey man! Yea I remember you.
I recently posted a video in a thread (Daniel's thread), about muscle memory and how if you workout for 2 months and make some gains, and then stop working out and lose the gains and start again you will get the gains back (make gains) much quicker than it took you the first time, that's why I tell people that they shouldn't worry if they took a break. I have a winter break from school and before the winter break I said "I'm gonna use all 3 weeks for working out (and other stuff of course), but I won't miss a day of working out: calisthenics & cardio, and I will have a good nutrition", and guess what. I got a cold, but I still workout haha. Anyway, that's because my mindset is stronger than it was, I'm coming off of a 2 year depression & anxiety (kinda like a teenager depression), so my mind wasn't strong at all, it was like 0 literally, so it took me a long time to just get a strong mindset, you know instead of working out I was just watching calisthenics videos and replying to threads here with the information I knew, I was also injured so that had another impact. Anyways, a false grip is a hard thing to get, especially if you're overweight - everything will be much harder in calisthenics, but you will make stronger gains in my opinion because you have this more weight pressuring the muscles when you do the exercises. About the false grip, I don't know if you will do the full false grip where you're standing on the wrist bone and make a fist or just dig your wrist & fingers as forward as you can in the rings and do it like that, I think that was a pseudo false grip but I'm not sure. One thing, I tried the full false grip on a pull up bar and I kinda got a little injury so whatever you do be careful, make sure you strengthen and stretch the wrists day by day. You will get it, just do some research on it.
You will reach intermediate level in 6 months, I am actually training for half a year and I have reached:
Push - Level 13 (Waiting on a resistance band for better muscle ups, I can almost do one without a resistance band though)
Pull - Level 18 (Failed at the L-Sit Pull ups)
Legs & Core - Level 19 (I will try level 20 on both in a few days, I've been going back levels to test my strength)
Second goal, lose 10 kg, that's very possible, like I said when I started I was at least 94kg if not even more, and now I'm 80kg, so I've lost 14kg in a bit over half a year (I started with better nutrition before actual calisthenics).
Easiest way to lose fat is to stop eating unhealthy foods that are full of empty calories that won't help you in the long term (refined sugar that makes you want to eat more, unhealthy fat that makes them delicious and want you to eat more and lowers testosterone levels). Small changes day by day make the big changes year by year. It takes time, even if you don't hit your goals in the next 6 months (but I'm sure you will!!!), don't get discouraged - if you are better than you were a day ago, a month ago, a year ago, there's no need to feel discouraged man! Go get it! SALUTE!