Wrong, its like a car speedometer, left is slow, right is fast.
Basically you are showing an aptitude to this game and will advance quickly. Buying any clubs at your level, you will outgrow them quickly so my advice is to wait. Certainly a couple of wedges will help but much better wedges that will last become available in the mid-late thirty levels, and these would improve your game a lot,
Any irons purchased now will be a waste o money IMO so try and earn as many credits as you can and get at least the higher level Raptures or even G20s (preferred option) if you can wait.
In the meantime try and learn the game as much as you can, level up and enjoy.
Final point, I always went for the "slow meter speed clubs" at lower levels, but with practice the faster meter clubs are generally going to be required in time, so don't be put off by the faster meter (and you can buy slower meter balls to offset this).