it is possible but its worthless if you just use it not for productive purpose like actively making silver with all the bonus especially market tax reduction.
level boost is crap now with all other free boost, x32 exp, and leveling is so easy and even free jump. All the misc boost are trivial as well even the mercenary badge limit boost. The sole purpose for token especially veteran is indeed to perform trade of marketable only item to prevent higher amount of tax, whether healthy trade or usually funneling.
if as an f2p your purpose of activating premium token is just to use the storage or transfering silver between character without even making enough silver to cope for your monthly need of token for team storage need, you just basically wasting silver as token price is crazy mad high, even in the most busiest server, even when the game nerfed silver income.
For comparison, pre silver income nerf like a year ago you can get token for price of 15m+ than with the introduction of silver mining content like division singularity it rose to 30m+ and even more. Now with all the silver nerfs the price are even higher than the price pre silver nerf lmao.
tbh with points/coin system, items bound to team/character, unnecessity of switching gears between character that isnt as intense as it was, equipment management system, farmable resource tradable to points/coins, and very light weight resource items, you can survive with personal storage and basic team storage with all the extra slots you can gain for free.
if storage is problem for you, you just have very bad inventory/storage management or just freaking craps hoarder. this is such common case even with veterans where they hoards old item they wont ever use again but they just keep it for personal collection which waste storage slots.
most ticket items are lightweight or even 0 weight so you can carry as much as you want, heavier item like potions means you just need to carry as much as you need, and super heavy resource due to its huge amount are the one belong to storage. with character slot giveaway, you can create a character with a sole purpose of hoarding item, in which my case usually a squire or just personal shop cause they wont jam for some adventure but really just stick to town.
if as an f2p or even p2w you just use premium token to fulfill your need of storage, with the game situation nowadays, you just wasting silver/money.