What are your must-have bullet journal supplies?

I was gifted $50 on Amazon and want to spend it on bullet journal supplies. I bought an a5 loose leaf journal with inserts and dividers. I have $25 left. What should I buy?

I am a little artistically challenged so I want to make it as pretty as possible without having to use actual talent lol.

My journal is going to be 75% reading and 25% wellness tracking.