I was thinking to start in mining but i don't know what hardware i was about to use and i dont' evn know what app i'll use?is there any way to easen my problem?for example a link with instructions? 
do not do business with new forum members unless you use an escrow service.
Try to talk to long time members with good trust records as you will not be robbed as often.
your power cost is important.
your internet reliability is important.
your tolerance for noise is important.
feel free to send a pm to ask for help