Not sure if refinancing is best or selling

[Junior Siona]

Hello. Having a hard time making a decision on wether to refi my primary residence or selling it to buy elsewhere I would grade my area a C. My current home is a 4bdrm/2bthrm home built in 2007 loan is at $180k so I do have a good amount of equity in the home. Zillow has it between $320k-$415k. Not sure if I should just refi to get the lowest rate and wait a year before selling. I just want to make the right decision and need some experience expert advice.