Did I screw up my character? Thief Advice

depends on ur hp goal, u can check here

 

Not to say there is a right or wrong way to do things but here is what I'd suggest if you're just coming back to old school maple for the first time.

-Figure out what you want to do. Are you satisfied with just hitting 4th job, maybe doing a few zakum runs and having that nostalgia rush. Or are you looking to invested hundreds of hours into the game to reach end game, and participate in end game content. (Note that some classes might require a smaller time frame to achieve this)

-If you plan on going well above 4th job into that area of mid to end game content, figure out what your HP goal is. When you know what your HP goal is, you can then calculate a realistic time frame on how much NX/Time you'll need to achieve this goal. If you end up having a minimalist HP goal it might be feasible to main a washing char depending on the amount of time you put in the game. (Slow pace grinding + Voting = vs Face pace Grinding + Voting = could have some issues with unused AP depending on your goal/job choice) Note: that after joining the Legends discord, #questions might be able to help you figure all of this stuff out.

No one immediately picks up on all the intricacies/meta when just starting out. They either had a character that didn't wash or mained a mage where the washing issues aren't comparable to the other classes. I'd suggest you either continue with your dexless assassin without worrying about washing or switch to a mage as you take the time to learn and understand the game more and what requirements you might need for what you want to do. Regardless you're gimped by time anyway as you need vote nx for AP resets (required for washing), which takes time to accumulate.

I'd suggest to immediately start voting on at least 2 accounts where you don't touch the NX. Guide on how to do that here.

 

I would restart if I were you. But it isn't really needed depending on your goals on game. There are some light washed NLs that did all contents in the game, but you must ask yourself about your goals. Like, do you want to be dependent of HB? Do you want to lose some damage while you avoid some bosses skills? Do you want to fight literally all bosses?
For example: there are some people that want to wash enough to have the HP needed to fight all bosses without needing HB (not always you will find dark knights for your party). There are some people that don't want to fight pink bean, because you will need to be high level and they don't plan to play that much. Or even people that care too much about damage, and if you don't have enough HP you will need to avoid some attacks and lose damage (and depending on boss, you can't even avoid those spells).
EDIT: actually, maybe the best idea for you is just play until you learn and decide about what you want to do. Even with this dexless char, you can have fun and farm some mesos with gachapons maybe, then you can create another one more comfortably or even continud with this one if it's what you wish.

 

i would like to also add, apart from the voting timeframe u may see in these hp threads, washing is way easier right now with monsters dropping 100/250 nx cards. you're not only limited to 6,000nx daily but with nx drops as well now as well as event AP resets.