Now that you have decided that you want to learn to be good at a string instrument. A guitar, for instance. The next step is to pick out what kind of guitar you want to learn. Is it rhythm, bass or acoustic?
When you have decided on the kind of guitar, a good brand is up next in the decision making. All other accessories or even next instruments to play should come later like vater power 5a at m123. Otherwise it will be a waste of money to scatter your brains out learning another kind of instrument when you are still figuring out the one you have learned basics in.