Self-employed IRA Flavors/ options

Hola!
17 part question here:
I am 41, self-employed, debt-free, currently have Traditional IRA invested in VFIFX (finally, after 5 yrs of not being invested- thank you for revealing this to me!). This account is funded monthly until 6,000.
I just opened a SEP IRA, for 2020 taxes- lump sum deposit into VFIFX.

What do I do with the Traditional IRA, if SEP IRA is the (new?) tax advantaged account? Is there a penalty for having both? Do I stop funding it? Transfer to SEP? I need help understanding.

And is my next step a personal acct, same TDIF? Then buy a house in Tijuana?

Thank you!
Mel