[Just_a_beginner]

Villain maybe has 97s, 76s, 65s or 77.But he also could have a smaller set or a pocketpair like JJ-AA, maybe 2 pairs or even some villain could just bluff you here.
So i would play the flop same and bet 10-13$ on turn. If villain goes all in i would call it just because theres so much other options too than straight.
Like you played it, i would call the river and only hand i would really scare would be TT.