Launcher loads and when I click "Play" minecraft does not respond.

After leaving minecraft for some time, I decided to come back on today. I clicked "play and it all seemed fine, I waited 1 minuet for it to load up to preform the mojang logo. Nothing. I restarted my computer multiple times, nothing. Asked my friends what to do and they told me to uninstall and to reinstall it. Still, did not work. I hope I can get a salution quickly. Thank you - UmGabby