Good evening...
You don't give any indication of your location, which may help. Why..? Because the best way to get started is to book a lesson or two with a competent tutor. Quite often, a first consultation could be free, or reduced rate, just to have a chat about what your requirements are, how to go about acquiring an instrument (and how to tune it etc...), specifically tailored for your case. It needn't be expensive, and is well worth its outlay in any case, as you'll be put on the right track from the outset. There is a plethora of U-tube videos, courses, methods, books and more, all of which can be a great help, but the best start, before even looking into this confusing amas of information, is to talk it over with an expert, ie: a tutor.
Good luck with the venture whatever you decide; hope this helps.
Douglas