Happiness and Regrets.

If only I waited.
If only I waited patiently then I wouldn't have thought of any regrets today,
But I didn't...
Now I have to suffer, happiness is already there.. reaching out its hand, I wanted to grab it but regrets is pulling me back,
I don't want to taint happiness with regrets that's what I've thought if ever I am with it, so I chose to stay as I watch happiness waiting for me to grab its hand..
What do you think I should do? Let regrets imprison me? or join happiness although regrets is hiding within me?