A friend once told me the difference between a good haircut and a bad one is two weeks. I think sometimes it can take longer, but in the season of cold weather and hat wearing, it might be a good time to try home hair cuts. There are a lot of You Tube instruction videos and one of my favorites is Glam Girl Gabi
Another item I have found useful is the CreaClip. There are tutorials on their web site. I use this to cut my hair and then refer to the Glam Girl Gabi site for layering. Hair scissors were relatively inexpensive at Walmart.