Make a list some time of all the things you wish you could do in your spare time then when you have that spare time go back to it and see what on the list you want to do!:)
You could always try organising a fund raising event for something you support, jumble sale, sponsored walk etc... so much to choose from to do.
Another thing to do is try all those recipes you see in magazines that look fiddly and fussy, give them a go while you have spare time to devote to getting the instructions right.
Go to your local hospital and offer our services as a voluntary helper? ring up local charities and ditto?? there must be hundreds of worthwhile, stimulating situations out there - people who would be thrilled with your help. Learn a language, and then travel to a country where they speak it, or take up a musical instrument? Take up yoga? Buy a puppy?? Life is far too short to be bored. I admire you for your frankness in admitting that you are bored, but I feel you should get a grip!Good luck.
Do something you have never done before - Anything. This can range from developing recipes, making you own face masks or even just going for a walk and sitting on the grass and having you time. Sorting out your wardrobe, or draws is a good one as you finally get rid of those clothes youve had for years.
Take a class in something that will be a challenge; then you'll be spending your time out of class learning how to master this new skill/subject/hobby.