Well, this is my first year of robotics and I am taking to it very well, I would like to get some ideas for my shooter bot in nothing but net.

If you’re taking to it well then you just need to do some research. There is no substitute for research.

Single fly wheel, double fly-whee, puncher etc.

there are many threads discussing launcher design, check through some robot reveals


You might have a look at these to get started:

Search YouTube for buzzwords like “Nothing but net NBN shooter flywheel catapult puncher launcher reveal”