For the new coins , should we find a pool or because they are less difficult should we proceed with solo ?
This is more of a question of how much difficulty there is in mining the coin. If you have an extremely low difficulty, then you should solo mine... which is usually the case when a coin is first released. When you start seeing mining pools pop up on the main announcement page, then more miners are going to flock to it because it's usually easier to connect to a pool and start mining. Solo mining usually requires you to setup a wallet, download the blockchain, deal with early wallet beta issues, etc... so many miners wait for a pool. But once miners start jumping on pools, the difficulty starts going up, which affects your ability to effectively solo mine. So it's really a timing and difficulty issue on whether you should solo or pool mine.
Also can we know some coins are safe bet or rising stars as i cant find many info or i don't know what info to look at to understand the future of coins ..
Unfortunately we don't have crystal balls so no one can forecast this. You will have to do your own research and make your own choices.
I only check he coins that can be traded via poloniex for example , but they are either not mineable or they don't have any safe pools etc..
There are lots of other exchanges out there... some good, some bad that have many other coins that don't make it to a large exchange like poloniex. There can be some interesting opportunities found that way.
I am really lost..
Don't worry, no one becomes an expert overnight. Keep reading and doing searches for the topics you are unsure about.
