OKAY THIS IS GETTING OUT OF HAND!?

I origianlly started having eyesight problems in 9th grade but have not been truely noticed till the latter part of my 10th grade year. My eyes could never make up their mind on whether or not I am either farsighted or nearsighted, because it was either one or the other and its only farsightedness that makes me squint unless I've been texting for a while and the screen starts to blurr and letters start to merge together. When I look at objects they look slanted, crooked, and well after examining if this was right(even down to my cell phone it gets like that) I realized it just made it worse. Also I do get headaches from squinting to long, if I am tired its 10x worse, and I have to make sure I eat or it makes it worse. MY father did have to have lasic eye surgery because he had farsightedness, my mother is close to being almost albino with her eyesight, and my grandpa has the problem where he has to get shots in his eyes because hes starting to get tunnel vision. Am I next? What is going on here?