Should i delete my coinbase account and make a new one?

First got into Bitcoin in 2020 simply to buy certain things online. But now (since about 3 months ago) I have started to understand Bitcoin more and want to use it the same way most do here. However, if there's comes a time where I want/need to convert a large amount of my investment back to Fiat, will this be an issue using the coinbase account that has been involved in p2p transactions with potentially dodgy people? Would it be safer to delete this account and make a new one that I only use to buy Bitcoin, send to cold wallet, and then back to coinbase when I need Fiat?