Whether it takes your more or less than 4 years, or exactly 4 years, it does not matter when you finish school as long as you get the degree that you want.
Obtaining a college degree is a long and difficult process, and not getting a degree in 4 years is okay because it happens to a lot of people. Many people switch schools and majors many times because they cannot find a good fit for them.
Some people find it difficult to take 5 or more classes a semester, and that's okay. Sometimes you have to withdraw from classes or a semester all together, and that's okay.
I'm finally becoming comfortable with the fact that even though I haven't finished my degree in 4 years being okay.
I'm okay with this because taking it at my own pace to achieve my best grades for my degree is okay. It's okay to take fewer classes than everyone else each semester to be able to focus.
It's okay to withdraw from classes where it's needed so my GPA doesn't get hurt. It's okay to take my time because one day I'll have my degree, but I have to work hard to get there.