Here's my problem (i hope i can explain this well enough with my lack of knowledge), whenever i end up on cadence mentioned in the title (V-I), for example on the 16th bar i can't figure out what to do next, for me the piece is over and everything i try to write on bar 17 sound unnaturally (whenever if it's something new or it's a theme copied from the beginning of the piece).
I tried to analyse a couple pieces and the only thing that i found is that they (composers) tend to "start" on IV after V-I cadence, which make sense since I is 5th of IV, but again when i try to do this it sound awful.
I decided to ask you about my problem after i watched this video https://youtu.be/1Pf7Q2Vs07I?t=28s which can serve as example- after first 8 bars when he end up on V-I music starts again on I and it sound naturally, i can't find here anything special rather than short pause at the end of bar 8 (is this it, a simple pause?).
I hope I didn't made too much mistakes and you know what i'm talking about.
So my question is- do you know any techniques or do you have any tips to help me with this "issue"?
I forgot to say Hello since this is my first post on this forum ;) Sorry!