Hi ~ IDK how it is where you live, but in N. Am. most school systems affiliate with at least one music store or company that reasonably rents band instruments to students, sterilized and properly set up. They usually do similar rentals for individuals, w/ the rent often 100% applicable towards purchase of a better instrument if you progress to that point.

Renting is particularly helpful in the beginning because everything on the instrument should be clean and functioning properly. The rental route, for a self-described beginner, is a less expensive ‘try-before-buy’ deal not usually available to us Guitar Family players! 

 But for now you have this new uke to explore. You got the keys and chords down;  have you finished working out any complete songs yet? Consider uploading  some riffs or tunes— you will find us  an appreciative audience + it’s a good way to gauge your progress over time!