Education - be it formal or non formal - if it does not help person able to improves the critical thinking of a person - then surly there is no use of education be it formal or non formal
Along Sid I would suggest learning skills which can help you sell your services
I have seen people who went to school but they can't think to solve their problems. Getting Education does not mean that one will be wise to handle everything. Education only help people to experience themselves and to have good relationships with people.