i would give it some time first, try and learn how to make rigs what venues to fish bait to use etc etc before upgrading your equipment, multipliers in my mind are a better piece of equipment but dont rush into it, i used a fixed spool for 6 months when i first started sea fishing then rushed into buying tackle i didnt need, when your ready to get yourself a multiplier post a few questions here and ask what would best suit you, you will almost certainly need to change your rod also, so your looking at spending roughly 200 quid just for these 2 things, so its a costly choice to make.