@IdblowJonSnow
Bloody hell, I don't understand some of these questions, nevermind the answers!
It is fascinating though. Also waiting for my DNA results to come back at the moment.
DNA can get very complicated, very quickly.
Basically, the bigger the number, the stronger the match and the closer the relationship.
dnapainter.com/tools/sharedcmv4 is a brilliant tool. Type in the cM number (centimorgans, it will be shown on your DNA results) and it'll give you possible relationships.
So on mine, the best match was 177 cM which is 3% of my DNA matches hers. Type 177 into the site and it gives you possible relationships, and the probability of each : 51% - Half 2C 2C1R Half 1C2R 1C3R.
And they're right ,because she's my second cousin, once removed. (2C1R).
The ISOGG wiki is a wealth of DNA info isogg.org/wiki/Wiki_Welcome_Page and there are Facebook groups which will help you make sense of it too.
The key to remember is that DNA doesn't lie, if you are matching with someone, you're related. Maybe very distantly, but the link is there. Start by looking at your strongest matches first.