Buying help!

Hello! Just for a backstory my partner and I are both divorced and have sold our houses. With the money we got back we paid most of our debit off, with the exception on one vehicle. I bought a manufactured home with my ex and it was completely different process than buying a house. Where do I start first? Do I need to get pre-approved first, talk to a real estate agent, look at houses? I feel lost and I don't exactly know where to start. Also what are some good companies to get your house mortgaged through? I've seen rocket mortgage advertising everywhere, but as someone in their early 20s I'm so scared imma get scammed. Any advice would help and be very much appreciated.