I believe self-acceptance is the most important part of any self-improvement plan. You must lovingly accept where you are, because you are responsible for getting there, the good and the bad. Once you can accept yourself, you can improve yourself. Seems counter-intuitive, but it's true.
EFT recognises this with the setup-statement which is worded thus:
Even though I have <this problem>, I love and accept myself completely.
I see it as you're the captain of a team. The team is you, but it's all the parts of your mind/identity/personality. If the captain is always coming down heavy on part of the team, it will not achieve it's best. The captain needs to encourage the whole team, so the whole team can achieve. If the whole team is behind you, you will be able to wholeheartedly commit to, so achieve your reasonable goals, because you are a high performing team!!
Once the team has met some goals (maybe start with easier short term goals and work up), it will have more confidence to go for bigger meatier goals, and more practice at working together.
So I say self-acceptance is the key. There are great EFT articles on self-acceptance by Steve Wells
here.
Joy to you
Hazel