Feel no sadness because of evil thoughts: it only strengthens them.
To revive a man is no slight thing.
A man should eat slowly, properly, even if he eats alone.
Believe that none of the effort you put into coming closer to God is ever wasted - even if in the end you don't achieve what you are striving for.
Even if you can't sing well, sing. Sing to yourself. Sing in the privacy of your home. But sing.
If you won't be better tomorrow than you were today, then what do you need tomorrow for?