B. I highly doubt you have damaged teeth on either your chainring or sprocket (freewheel). Unless you can actually see a substantial amount of wear i would recommend keeping to your current bits.
C. A new chain should sort your problem. If your wheel axle is sliding back without a increase in the number of link in the chain, its due to wear, which makes it look as if the chain is stretching. Don't forget to lube that badboy up, metal on metal is a bitch.
D. If you want to make hill climbing easier you can sacrifice top speed for higher acceleration and a more spinny gear if you either; replace the chainring with a one with fewer teeth or replace the sprocket (freewheel) for one with a higher number of teeth.
A. You're not an idiot. You're just a newbie.
B. I highly doubt you have damaged teeth on either your chainring or sprocket (freewheel). Unless you can actually see a substantial amount of wear i would recommend keeping to your current bits.
C. A new chain should sort your problem. If your wheel axle is sliding back without a increase in the number of link in the chain, its due to wear, which makes it look as if the chain is stretching. Don't forget to lube that badboy up, metal on metal is a bitch.
D. If you want to make hill climbing easier you can sacrifice top speed for higher acceleration and a more spinny gear if you either; replace the chainring with a one with fewer teeth or replace the sprocket (freewheel) for one with a higher number of teeth.