I am a libra sun sign and capricorn moon sign... am I doomed?

No you aren't doom. You are saved actually and largely governed by intuition and strong feelings. You are more mental than physical where pleasures are involved. Count yourself lucky because the ideality of Libra is well balanced by the practicalness of Capricorn. It gives good insight for busines with perception & reflection being well balanced. So, you are good for a few more years . lol

no, you're perfect .