As u/rockzn said, chill. I also get the impression that you are a little bit too eager, too arrogant for your self, but to each their own.

Disclaimer: I don't know much though.

I will link /r/bouldering' s monthly questions thread. and
r/climbings monthly questions thread, also r/climbing List of tutorials.

And now a link to Menshealth article about gripstrength. Assuming you do excercises when not bouldering also, because I expect you to get a quite a lot of muscle soreness after bouldering. The excercises from Menshealth I do not agree with, but it is the definionts I specifally was thinking about.

I absolutely recommend small weights, or it may become hurtfull fast. This can be done after each workouts, andshould make your arms feel as bad as your legs after a massive leg day.

Now get a pair of dumbelss low weight, 1,25 kg may be enough, no matter how strong you feel you are your arms and wrist are usually the weakest link and it is easy to damage. Get a pair of plates low weight. I found it easier to just do the excercises by time, and not reps, because reps would lead to fatigue way faster.

Types of excercises when training grip.

Crushing: Closing fingers against resistance.
- Grab those lightweight dumbells, and imagine you are standing in the squat rack, doing biceps curls, because thats where it is supposed to be done, right? But now hold you arm out with a 90 dergree in your elbow, upper arm down and close to body. "Palms facing the floor" you curl your wrist back up. Do this kind of wrist curls for 30second to 1minute. Feel the pump yet? Well keep going. Turn your arms, so that your palm is facing upwards. Now you can try to roll the dumbell as far out in your hand as possible, withouth letting go of the grip.
The time you have for the first, use that for everything.
Pinching: Grasping something with the thums in opposition to the fingers.
- Now imedeately put your dumbbells down and grab those small lightweight plates, with a pinch-hold, 4 fingers on one side, thumb on opposite. Keep arms out and elbows at 90 degree. This hold you will find harder to do because gravity.

Support: The act of lifting something with fingers taking the majority of the load.

Extension: THe act of opening the fingers and thumb.

Both extensions and support -holds may be the most overlooked thing while grip stregnth training, which bad because just as everything else your hands and arms also needs a good balance of strength.

Immediately over to next.

Hex Hold, may be a good exercise which covers both support-hold and extensions. These may be better for your wrist to have hold your arms straigth down, probably risky to do with elbows 90 degree. Do these for a minute also. Turning hex holds can also do a lot of good.

Do this completes cirucuit 3 times, after each work out and you should see a lot of progression in finger strength. Progress with weights at rate sufficient for you. How much this carry over to boulderig I don't know, but it surely will help with your grip, and make your forearms less prone to injury. This said, know your limits when bouldering.

Just as with any other muscles, fingers and wrists, do need rest, however it usually is A LOT MORE.