i always delete my social media accounts?

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i always delete my accounts there permanently and this is not only once or twice but a lot ... i like them they are a space for me to express myself i don't like to add all the people i know i try to avoid this .. i don't like to be judged or criticized .. but i end up with people i don't know which i boring ... i now miss expressing myself, my hobbies, my days on twitter and instagram ... but i think about what people would think of me ...and they take a lot of time i always check what others are up to ... this became obsessive ... and kind of distract me ... i should spend my time studying .. i succeeded in eliminating all those websites for a couple of months but now thinking of going back there again ... i honestly regret deleting my accounts i wrote nice stuff and took nice pictures ... but in a sudden i decide to be off it ! and everything is forever gone!
please help me i am confused ... should i go back to them or stay away from them? and if i am back do you have any idea how to not delete everything and quit???