You are still very young, so have you thought about maybe going back to uni,if you feel regrets now, you always will, my son left school ,with only basic qualifications, he regrets it so much, however he has done well and worked his way up the ladder and is now in a managerial position, but he wishes now he had completed his schooling and had gone to university,he wants to go to university now, but financially it probably would be too hard for him, so do think about it, seriously do it the easy way if you can before it gets too complicated,,.