You and only you are in control of your quit now Linda. We can give information about nicotine addiction and the quitting process, as we've seen it during our own quits, but in the end you alone will determine what happens with your quit.
Lately, it seems you have been questioning whether quitting is worth it for you? Maybe it's time you sit yourself down and ask/answer (honestly) these questions:
(Left Side of Page)1. What do I think lighting up a smoke will do for me both short term and longer term?
(Right side of page) 2. Why did I quit in the first place 3 months ago? Has that reason changed or has my desire to achieve that goal changed in these past 3 months?
(Right side of page) 3. List as many benefits from quitting smoking that you have noticed in your life in these past 3 months.
(Left side of page) 4. List things you think you have lost since quitting smoking.
Maybe if you do an audit on the pros and cons of quitting, and where you see yourself in the process right now, it will help you to prioritize what it is you really want and whether or not you are on the right path for achieving those short term life goals.
Just a suggestion because sometimes, we can't see the forest for the trees, as they say. Writing it out on paper can sometimes help us focus on what's most important to us.