Gmail smtp [noob]

Hello im new here. To me Gmail smtp seems to have the best delivery compared to the other paid mailing stuff I tried out. I want to go past the 500 emails limit. Can I just make a new gmail account and send from there? Or do i need a new IP? If so can i use AirVPN for my new ip? I hope i don't sound confusing maybe this question was answered in the forum before but i suck at searching.
I just want to send out a 1-5k emails a day(most are customers that opted in) with my gmail if possible.

Thank you.

i am also newbie.but all i know yet is you should create a new gmail id....i think crossing 500 wont happen....i also can suggest that outlook has 3000 limit...so it will be good also