Serious question!! Should I start new account or using the old one?

5 years ago I use the method add me fast in sexy group and get 1000-1500 friend per facebook acount.
Now I still have around 8-10 account from that.

But I got new project and it was very unique niche so my question is should I start making new account to add 30-40 friend per day with the people who only interest in that niche?

or I should use the 5 years account with those 1000-1500 friend that got from that sexy group who only interest in sex to add friend for my new project that are completely opposite niche.(No phone to verification) Still not sure if I can add new number or not since g mail will still ask for phone verification from those facebook account.

Is it more easy to get friend accept since your account got a lot friend right so it make more trust for people to accept.

or I better start new account and buy sim card from my country? and spend 7 dolar each so that those sim card will last long for 3 year from that 7 dollar for using phone verification every time it have problem?.

Also, will my account be really safe as long as i got those sim card for phone verification since g mail lately always ask it right.


Thank for answer me this time i never give up.

I see no reason to rebrand the old account if the audience of the new project is very different