You’ve got some valuable feedback on your account. It would be a shame to lose it.
Remember, there are now many more sellers on Fiverr than at the start of the year / pre-coronavirus. With a new account with zero feedback, you will be competing to breakthrough and get noticed.
However, it’s also tough to ‘reenergise’ an old gig. A couple of years back I paused my most successful gig as it was causing stress, but earlier this year I reactivated it as other work had dropped away. Despite the gig previously attracting an order or two every day, the gig didn’t attract a single order in over half a year. I’ve since paused it again.
My suggestion would be to stick with your existing account. Maybe you can create an additional gig based around your skills, although of course it must be sufficiently different to your existing gig? Maybe this will help.