What does it mean when a transaction stucks? That means its not realible?If it stucks then you might lose money?

Is there any chance goverments to go against bitcoin if they see its something against them??

The right way its to use solar panels and also wind turbines to make electricity. That would be the cheapest way to mine bitcoin dont you think? So the only waste you gona have its on the antminers and asic etc.

So i get the point how a miner works and blockchain and stuff. So lets say a developer who wants to invest hes money. Decides to buy a building with all the supplies the miners want as also the technology. Is this possible? I mean its legit right? Its like making a company with miners working for you and supplying them with the technology and their needs.

Im a new one here and iv been studying blockchain and bitcoin, so and i decided its time to invest because i think as time pass i might miss the chance to make profit.So what should i follow?which sites and topics? How can i know that ill make profit?

So if theres some1 willing to help me out ill be glad!
Where is the block they are mining based? Which algorithm and is there an end of it? Or as long as the number grows its never gona stop?

I need help to get to understand how does Ethereum works based on blockchain but in a more simple way.