I have never enjoyed the luck of the first year, nor have I ever achieved fame. It won't be established until lent, just move and change your surname! What do you mean?

I have never enjoyed the luck of the first year, nor have I ever achieved fame. It won't be established until lent, just move and change your surname!

It means: when you are young, your luck is limited and you won't enjoy it much. You will succeed in your career in the future. You can't succeed until you are 40. If you want to change your fortune, change your place and change your name, it is the best policy.