Learning Vim.
The learning curve was steep and for the first year (!!) I felt SO awkward in Vim. However, I pushed on and eventually it became second nature. I started reading up on how to do stuff differently, I watched a lot of youtube videos. Then I started implementing these things more and more into my daily routine. Now all these things are ingrained so much I get annoyed if there is a text box without my Vim binding because sometimes I just mash kjkjkjkjkj which I rebound to .
Learning Vim is worth it.
For those who are still in doubt, you are going to be editing text (code probably) for so much more hours. If you are going to repeat something or do it often you should invest in your productivity. You could think of your non-trained productivity as a straight line in the (time, productivity) plane and your invested productivity as some exponential curve. It takes (a lot of) time to get to the same level, but afterwards your productivity just skyrockets. I am very happy I made the Vim investment.