Hopefully, the car was serviced at Hyundai dealer whilst it was under warranty, so do you have a service schedule sheet that lists everything they do and at what intervals? I do all my own servicing, but if you are really useless with cars, I'd suggest going to a garage that has a good reputation. Some jobs like changing the air filter, cabin filter, wiper blades are so easy to do it's a no-brainer to do it yourself.
A benefit of doing it myself is that I can select top-quality parts, rather than trusting a garage that may just buy what's cheapest at the time. My own car is on a 20,000 mile/2 year service plan, with a recommended interim service that was just an engine oil change. I always did that myself, but then I don't mind getting under the car and getting my hands dirty.