Now I really depressed because I cannot just pray anywhere I want, because of the strong fear of being badly mocked and judged and also I have strong paranoia thoughts, and this has led me to the feelings of insecureness and I feel very bad.

I once asked my Christian mom if I can ask my hi school principle to grant me a special private room, and she said of course not because all rooms and class rooms are used and are still in use and occupied, and in my school I cannot have time to pray not even in break time because my Christian class mates do move around, and there are other class mates from outside who likes to visit ours and they move constantly like rats and mice. So I come up with this idea for asking God To excuse me for not praying until I have the perfect time for it, so here it is:

"O Allah! I promise to You that once I finish my high school, I will go back to Kuwait but only this time, I would stay there permanently and make a new life there for the sake of fulfilling the 5 pillars of Islam, but in Romania I'm unable to because there are many people who likes to jokes and mock others in very bad ways and this has led me to be lazy in performing ritual prayers, and also I started to feel insecure even in my own apartment with my folks, because of the Christian grandma, because she likes to irritate me and also to make so stupid and annoying jokes about anything. Please O Allah! Accept this promise, verily I will indeed try my best to fulfill my prayers once I successfully pass the final exam I'm heading for, and in my school, there is no place for me to pray. And my Lord! Until I come to Kuwait, please don't send any sort of Punishment on me until I fulfill or break the promise once I get there"

So, is this a valid promise to make? Can you please tell me? I'm really in deep depression.