Advice???

So basically I got this rod as my first rod, which I’m now regretting. Online in my area it goes new for anywhere from £50-£80. I’ve used it maybe 3 times for maybe 8-15 hours total. Not even pulled anything decent up with it. It doesn’t even look in any way physically damaged in comparison to seller’s photos. I didn’t even realise it was a boat rod until recently. I don’t have any good use for it anymore and someone in my local area is selling a beachcaster setup for £50 (fladen XTC 12 ft beachcaster rod 2pcs. Oceancast 90 spinning reel and 1000m of koike tournament 20lb clear mono)

I also have another rod and 2 spin reels (1 for this rod) so I don’t mind waiting a short while if I get the rod sold for £50 eventually

Basically should I try to sell this rod and buy that setup? What should I price the rod for?

I mainly sea fish in the uk, on rocks and on a local point, very rarely, if ever from boats, you can cast straight into roughly 50ft deep water in the point, and the rock spots are all different, usually go there for mackerel n stuff so would only bring this new rod that I want there occasionally. If that’s helps anyone recommending me options then there ya go.

Thanks for any advice in advance!