Hey Ricky if your not happy cleaning windows then try something else, your only 23 after all!! If I was you I would learn a decent trade while you are still young, something that you can always fall back on if you need it, something like plumbing, electrics, carpentry, bricklaying ect. You can always go back to window cleaning if it dosn't work out, or is there something that you really enjoy doing? a hobby maybe that you could turn into your living, because thats the only real way to be truly happy with your work, and that is to do something that you love to do!!
Very few of us could really say that cleaning windows is what we really love to do, many like me love the freedom and lifestyle that we get from window cleaning, but not actually the job itself.