can you please advise how to overcome with this?

hi I am very confused taking deceision. I want to earn money but now I am losing money all the time my business is not stable. its has certain margin. it cant go high sale always medium. my rob is 23.07.1974, name mohamed. ask till now I always loss everytime lack of money even I work or do business. my wasting money always go either in the buying cars or food business. I want to do business but dont know what trade to take .
please advice