Getting back

Hello there.

I used to play this game quite a bit a few years ago. I was religously grinding but the guild I was on kinda fell out and the inspiration to grind also stopped. I love star wars and I always like to see some content that comes out, but since i stopped im not sure what I want to do now. I would like to come back, but should I continue on my old account (about 2 years old and the furthest i got was unlocking GL Palpatine) or start a new one for a fresh start on arenas on a new shard?

Thanks for any advice anyone has