1. I would try to avoid overspending my money on games and gambling so my crypto savings wouldn't be affected.
That's a tough one but I hope you achieve this as it will significantly lower your losses.
2. I would try to invest regularly each time I would recieve my salary.
That's a nice one. So you would be basically implementing an SIP for bitcoin. You would definitely reap it's benefits in the long run if you do it regularly.
My crypto resolution would be to develop a skillset which is enough for me to start delivering services which can yield me an alternate source of crypto income.
Multiple sources of crypto income is what I would desperately want in 2021 and I would definitely try harder to achieve this.