How to maximize and catch up

I work for LA county I am 32. I been here 5yrs. I have a pension plan they take a portion of my check and set aside there’s a $17k balance with Lacera. I have a 457b plan with Empower county puts 4%. Ibcontribute 10% as of 7/1/2021 with balance of $23,845. how can I maximize and grow my accounts. I do have a funded emergency fund. Paying of a car which long story is under my name. Far enough in it that I might as well pay off. I just started making extra principal payments. $300 a month and paying off any balance I have on credit cards. Not much I only have one and don’t intend on getting any more. I make 48k minimal bills. I seen the charts just not sure how to start. Looked at Vanguard and others seems simple enough.
Partner is 39 no plans barely got in the country company offers a 2-4% based on sales makes less than 32k but spends like crazy.
I have separated accounts and set up savings he is not aware to avoid loosing it all.

Check out this article regarding how to prioritize your money:

And this one regarding how to optimize your investments: