I've found that the stick only works when starting from a lowly place to get up to speed. Envy, resentment, anger etc. are very draining and unstable sources of

I've found that the stick only works when starting from a lowly place to get up to speed. Envy, resentment, anger etc. are very draining and unstable sources of motivation and it's hard to build a long-term strategy upon them. At some point genuine interest should take over as your motivation so you don't burn yourself out.