How long should I wait for things to get back to normal?

I have been dating the same guy for 2 yrs. I am divorced & 39. He is a mature 26. We both have kids. At first it was all about , but it developed into more. We still had hot almost every day for a year but that has come to a halt unless I nag. He says it is lack of career stress. I am a sucessful independent woman. He barely makes it monetarily but I do not help him financially other than paying for 99% of our dates. He is still attentive & complimentary but in spurts. I need an independent man and feel like he is a dependent boy. This was somewhat OK with me before since he ured me that his lack of stability in the job area was temporary and very unusual for him. But it has been 2 years! He seems to want to "get by" and not have a career. I was understanding when emotionally I was getting what I needed in our relationship but I feel completely spent & drained after the last year. I have bluntly stated all of this to him monthly for 6 mths. When is enough enough?