I highly doubt your nozzle is worn out unless you’ve been printing with any special tough filament (e.g. carbon fibre core). It’s completely different machine, but I have over 300 hours on mine and I haven’t had to replace the original brass nozzle yet.

Edit: Perhaps try printing a solid section of only the first layer (no need for the whole bed, but make is fairly large). See if the lines mostly all join up, then reprint without changing anything to check if it is consistent.