The Libra Sun and Cancer Moon are both leadership signs, so you have plans and are a person who knows what you want and where you are going. Cancers are kind, emotional, expressive people who are family oriented. They like to be the power behind the scenes, but somehow always find a way to get attention. You are friendly and well-liked, trusted, and people always ask for your advice, because it is sensible and you don't judge others.
The Libra Sun means you are ruled by gentle Venus. You also like nice things, but the Cancer and Libra ambition means you will work hard to get them. You are personable, and I can see you working in the public, in the hospitality industry, as the owner of your own business, and being creative and artistic. Libras want to be half of a couple; Libra rules the marriage house in astrology, so finding a partner is very important to you. You don't like crude behavior or coarse language and are sort of refined.
Sag rising is the way others see you. You can be tall with this ascendant. You are interested in religions and cultures, education and philosophy. You could fall in love with a person from a different country and culture, especially with your Venus in Sag, too. The Sag in you means you are blunt in speech and can hurt other's feelings, though the Cancer and Libra should mitigate that somewhat. You stand up for what you believe in.
I am a contributor to several niche sites and have written many instructional astrology articles. I wrote a whole series of Venus articles because it represents your love life and social life. I have covered what Venus means in each of the zodiac signs, and these articles are found on Letterpile.com. I will give you the URL to Venus in Sag; it has more info than I have room to write here and should answer your Venus questions: https://hubpages.com/serializations/Venus-in-Sagit...