Lapse.
Member
from what I understand, good F2L takes a number of years of practice.
No it doesn't actually, F2L in less than 20 seconds if you've been cubing for less than a year should be pretty obtainable. I have some friends who have only learnt to solve the cube in less than a year and they are sub-30 already.
The easiest advice to give would be to do a ton of solves. You'd naturally get better(and faster) at what you're doing. I did this for a long time, getting to about 30 seconds using a crappy easy-F2L hack I made myself when I started.
Some other advice would be watching example solves and focusing on how the person solves each F2L case. Its very hard to explain what to do to improve your F2L in a short paragraph anyway since I don't know much but these are what i use to get sub-10 F2L. Not very fast but I think my opinion still applies.