Assess Your Goals Before Rebranding
A logo is meant to be timeless. If your goal is to be more modern, then a logo refresh may be the direction to go. If the direction is wrong, then a rebrand would be more appropriate.
Have A Plan Before You Brand
Branding is forming who you are and what you want customers to buy into. Decide what you want for your business and where you want your brand to be in the future as a platform for developing your identity.