Very common story here so you are in good company. I took it up "again" in January of '19. With the guitar I bought in 1980! Gear is fine, it comes down to practice and patience and keeping expectations reasonable.

Very good idea to hire a coach. I have a coach I use as well because sometimes I just need to sit down with someone and say "hey, I am really struggling with this, what do I need to do to get this right?" So I would keep that relationship for the long term. You may not need a coach every week but you will benefit by having him or her available when required. Just let them know what you are doing so they know what type of client you will be.

Good luck!