Find ressources that shows shortcuts for your most used apps (IDE, web browser, OS). By reading through it, you might find some that you never thought could exist but are a huge time saver.
This might by hard at first, but try unplugging your mouse directly. You'll be more enclined to find workarounds that way. (I once had a half-broken mouse and was so annoyed with it that I became used to not use it at all)
Finally, embrace the almighty power of the TAB key
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I'd say, 3 things:
TABkey