Can you skip 12th grade and go to college will have high school degree?

No, skipping 12th grade does not automatically grant you a high school degree. You need to meet all the requirements set by your high school to receive a diploma. This usually includes completing all necessary coursework and credits, regardless of whether you complete them in three years or four. Some high schools may allow you to accelerate your education, potentially finishing all requirements before your expected graduation date, but you'll still need to officially graduate from high school to receive your diploma before college.