follow Dave Ramsey and his baby steps.
https://www.daveramsey.com/dave-ramsey-7-baby-steps
investing comes at step 4 after you got an emergency fund, and all debt paid off but the house. Dave Ramsey is where I go to for any financial advice. His book "the total money makeover" is a good place to start. I've seen it for $4 with shipping on
ebay, or your library may have it for free. He has lots of free content online that can help you. His "complete guide to money" book is also cheap on
ebay and teaches the principles of FPU (financial peace university)... an online class he offers for $120 range or so. you can get the same lessons in the $5 book.