oi watch your mouth the bamboozler is my new main since rip luna blaster
So for the bamboozler at least the best tip I can give you is to know your range. Generally you're going to have a longer range than most weapons so keep at your max distance and you should be good. Damage ups can be good but I don't use them, just know how many shots it takes to kill someone. Without any damage modifiers it should take two shots charged to at least 3/4 full (they dont have to be fully charged). The error I see what a lot of bamboozler newbies is when someone gets too close they'll just start spamming it - this is really bad unless it's really your last resort. When it gets that close the enemy is usually damaged, so make sure to try and get them with one charged shot and just stay calm.
Charge your shots. Your splash walls are also extremely important so make sure you use them a lot, just watch out for how much ink you have and don't be afraid of retreating to refill.
Bamboozlers also have surprisingly great ink coverage down long paths - from what I've seen (I haven't tested this) but they are generally the fastest weapon out of the starting block apart from an inkbrush. This means on maps like camp triggerfish you're gonna want to get to the centre as fast as possible and try to snipe people as they come up the ramp, and even place an ink wall if you know that they have long range weapons too).
So generally you're gonna wanna keep your distance with chargers, it's really important that you exploit their long range. But don't be scared of other one-shot chargers as a bamboozler, you should be able to get two quick hits on them before they can even aim at you. Also, if you use stick controls maybe try to practice motion controls for a bit, you might find your aim is improved.
(btw most of these tips are speaking in terms of turf war)
/wall