I'm debating deleting all my social medias
Why are you considering that?
Because I don't want to give them access to my personal life.
It's okay if you want privacy, so you should do as you please with your social media accounts. Letting too many people into your personal life can cause a lot of drama.
Should I delete my social medias?
I think it is ultimately your decision to make, but I have to say that there are advantages and disadvantages to using social media.  You can keep in touch with people online, but you may not want to give up too much privacy.  Perhaps you could take a middle road and just delete most of your old posts, but remain on the platforms.