Considering mining - Help a newbie

Hey everyone, extremely new to this and wondering if its something I should consider.

Was looking at buying a mining setup, which would be approx 160Th/s x 8 or 10 (Pending on what I decide to get)

I was wondering if this was something that would be viable long term for solo mining, or if i would need to join a group.

Ive been reading up and see a new block chain every 10 minutes, worht 6.25 coins etc. I understand you can win a chain and get it all solo. However, what happens if you don't win it (Which would be more the case) do you earn partial coins as a reward for the chain?

Im super new and confused as calculators I see online how something like 0.001 coin per day etc. It's that just an overall and you get nothing until you earn a block..? Im not sure how it works and no one I know is into mining.

Sorry for the ignorance!

Any helps is greatly appreciated.