Unfortunately most recommendations here are short term options, and probably make things worse long term mentally/emotionally.
Long term supplement usage I would dive further into different forms of Maca, or other natural herbal options which can be taken daily with no long term issue.
Look into diet, also cardio? Your heart needs to be worked out. Blood flow? Stress? Adrenals? Addiction to porn? So many things to consider other than a band-aid supplement.
It'd be nice to see an in-depth thread which looks at all the different areas which could be affecting libido.
I see these threads pop up all the time, yet rarely see anyone praise anything which has worked continually.
I can say T-force, M-test contain a compound which definitely increases libido. Desire is another issue, it's a complex topic.
I always will say, get some bloods done. I did, and my Endo thought I was on steroids because all my results were ridiculously high. I had very low libido tho, no desire to have sex.
Chinese medicine is very interesting, I read about Black Ant powder.
I've found also increased magnesium intake pre-bed with my zinc aids in more morning wood.