How do yew get someone out of ur head?

well its been some time now that me and my ex broke up but i jus like her alot and care for her sooo much i cant stop thinkin about her.iv been tryen to get over her meet new ppl started seeing this guy anso but every sec. of the day i still think of her. i just want her to be happy and it looks like wit me out of the pic. shes liven life more..i just wanna stop the tears. so what im asken is how do yew get over someone???