I don't usually suggest changing an entry level bike much, but you can make small changes to for the following:
1) stem, most important, much too long for you, looks like a 100mm and you could use a 60 or 50mm. Think
@jklett and
@Tim may have one for you.
2) your bike's not spec'd for more than gravel type rides. 30-32T in the rear is too small and you should consider getting a used 10spd shifters and cassette with more teeth which will help you with the hills (maybe someone here is sell a set fo 10spd shifters with 40-42T rear
3) as
@TimBay suggested, better pedals but also get shin guards as they are sharp. May even a pair of Vans or something will a harder sole than running shoes
Ride the bike through the summer and upgrade in the Fall when prices are better and you get the urge for a new bike