I've been doing something like an Inosanto blend for a little over 7 years (ie. kali/arnis/panantukan/wing chun/kuntao) and I'm still enjoying it although a lot of things are biding for my attention these days. I think I've also gotten to a point where I'm understanding how much my genetic presets and neurological state impacts progress. I've learned a lot but I still have quite a long way to go before I'm 'good' by my standards and with what I just mentioned it might be another five or ten years before I'm there.
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The loneliest part of life: it's not just that no one is on your cloud, few can even see your cloud.