Looking for Career Direction

I have completed my Engineering degree. But I’m not able to choose what to do after getting my Engineering degree. I joined a job but left it in few months because I found no interest in it and I thought that it’s better to do something of your own than doing a 9 to 5 job.

I don’t find myself suitable to take up any of the options available. Like if I think of doing an MBA I feel that being an introvert and reserved person I won’t be good at marketing.
I also feel that there might be no point in doing a masters in the same technical field in which I did Engineering because then also I will have to do the same type of job which I already left.

I have been sitting idle at home for last one year. I just can’t figure out what to do ahead inlife . I don’t have any direction to move on . Please help.