My husband gave up at 60, having smoked since he was 15, quite heavily.
Disaster!
His health suffered drastically, arthritis, irritable bowel and other stuff. He looked up nicotine withdrawal and found that this was the cause, especially for an older, life-long smoker. Young 'uns can give up without any side effect apart from the obvious addiction withdrawal problems. But not us.
In the end he went back on the patches and is on level one patches, half a day, permanently.
If you are older, and give up, stay on the patches. Elisabethjoan, this is what you could do too, if you don't want to actually smoke.