Wallet and Trading

Hello,

I am brand new to the Litecoin world, well the cryptocurrency world and am looking for some advice. I bought a few S7’s to mine bitcoin and have had them running in my basement for a couple of months now. I went ahead and took those profits and bought an Antminer L3+ which will arrive in August.

What wallet and pools for litecoin do you recommend?

What coin exchange do works best for USD?

From my understanding it works well to buy bitcon with litecoin, then gold with bitcoin and then sell the gold for USD?

Is this really the best way to offload Litecoin for USD??