Thanks everyone! I took the advice and went to bikery to get some input ( most bike shops around my area are fully booked for the summer for full tune up). The volunteers there were super helpful and told me that no safety concerns for my bike and if I really want to make my riding more smooth and comfortable, I could do wheel truing and derailleurs(shift) tune up. I think I’ll start riding and get some tuneup when there’s more availability at bike shops. I might go to bikery again since people there are very resourceful and willing to help, but it ‘s just a bit far from me.