you can always put the past away and not delete it. Personaly I don't delete things like that. I keep them so I can look at them later on at life and reflect on it. What I would do is private or un-list everything. or just keep it public and not interact with it. If it is really bothering you and you want to keep doing it later on, just take a break. you may not have the same amount of viewers when you come back, but if it helps it helps.