How can i improve my Yu-gi-oh! Deck?

First, get rid of all of your non-machine cards (except honest if you have it) my friend has a cyber dragon themed deck, and he says he needs to keep it under 45 cards, so you need to thin out your deck on a specific strategy. if you plan on participating in tourniments, get rid of last will and other banned cards. Lasty if you have diffrent dimention capsual and chimiratech dragons, then other strong machine monsters will be stronger too! hope this helped