33 is NOT old at all!!!
May I ask why you find being asked out by younger men frustrating? Maybe this feeling of being frustrated by these "younger men", is holding you back? After all there are some people out there who are quite mature for their age!
It seriously surprises me to hear you have not been snapped up by someone! You are soo funny and interesting! I love reading your posts! You are funny and have a SUPER cute personality!!!
I don't know what you look like but I am sure you are cute too!
There is someone somewhere for everyone! I really belive that! So don't give up (you are still super young!) and maybe give some of those "young guys" that ask you out a chance!!