You’ve chosen to play a pretty huge instrument!
Believe it or not, the double bass is actually not very hard to play. The most important part of playing the bass is to make sure you set yourself up properly with good technique. Good technique will make it easy to hold the bass, and easy to press your fingers down on those big, thick strings.
Let’s start with hold the bass with good standing and sitting posture in this video.
If you are a string teacher, make sure you instill in your bass players the importance of good technique. It will go a long way towards making sure you have happy bass players.