pikapp23 is right when he says
have fun. Golf is a strange game that can give you the highest high and 3 holes later make you want to snap your clubs. But for some reason we keep coming back.
Spend as much time as you can practicing. Divide time equally between the range, short game and putting. Then after a few rounds decide which areas need most attention and adjust your practice time allocation accordingly.
Be patient and set
realistic goals for yourself. This is my first season as a golfer and I am having a great time with it.
My personal challenges for the season are to hit at least one birdie, get better than 15% GIR for the season and to shoot a bogey round on my home course.
Those are the measurable targets. I would also be pleased with a more consistant and repeatable swing and to be able to hit shots longer so that I can clear the water (141 yds) on #9 with a 3i rather than with a 5W.