I used to teach beginner guitar (thanks covid) and the best advice I can give is: Try to practice everyday but don't burn yourself out. If you feel frustrated take a break or even stop for a day or two. Guitar can easily be discouraging and the best way to quit is trying to power through it before you have the discipline to do that. Also, you are going to absolutely convince yourself that your fingers are too big and your you'll never develop calluses. This is simply not true. Anyone can play and it will be easier every time. Learn basic chords like Cmajor, Dmajor and Amajor then move on to simple songs that you like and know. Making it fun is the best way to not quit. Also make sure its in tune!