HGTV published a really great article on things that every first time home buyer should know. It's super helpful! In addition to these tips - I think one of the biggest tips is to find a Realtor that you trust. Find someone that totally understands your wants/needs.
You can find the entire article here: https://www.hgtv.com/lifestyle/real-estate/23-things-every-first-time-homebuyer-should-know