A node is simply a computer connected to the Bitcoin network. Its main job is to validate transactions and ensure the network's integrity.Anyone can create their own node by downloading a copy of the Bitcoin blockchain using Bitcoin Core software.( There are others though). You can choose to create a full node or a lightweight node. To do this, you'll need a computer with sufficient storage and a reliable internet connection.
Learn more about running a Bitcoin node:
https://bitcoin.org/en/full-nodeI have a questions.
1.) Do we get bitcoin for running node to help pay for the power and internet payments if they want us to run nodes to get paid to do so. I'd be up to run 1,2 but need to know whether it's worth it?
While there are some advantage (such as better privacy, better security and have access to partial/whole blockchain data), there's no financial reward for running Bitcoin full node.
2.) And how to solo mine our own node?
Most Bitcoin ASIC these days have it's own OS, where you just need to setting it to use certain mining pool. So if you really want solo mine with your own node, you'll need to run both full node and mining pool software.
3.) so I get it that all the transactions are stored on the node but what good is having a node if you can't buy or sell your BTC without using an exchange?
As i said previously, better security and privacy.
4.)does it works on sleep mode in window pc?
No, in fact your computer can't do any task while on sleep mode.
5.) for a special privacy how to put a BTC node into TOR network?
Follow this guide,
https://github.com/bitcoin/bitcoin/blob/master/doc/tor.md.
6.) Do you receive funds from using bitcoin node? I have several pc at my home?
If you ask whether you get reward from running Bitcoin full node, the answer is no.