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This really does frustrate me. This old body is going to have to catch up with what my brain wants it to do sooner or later... preferably sooner. I'm getting tired of waiting.
That post had more to do with determination to succeed than with anger (in a negative sense). But I understand what you're saying.
I can still swim underwater for 25 meters though . So in conclusion do HIIT a few times a week (depending on what physique you are aiming for).