What is the fastest way to get stronger?

I just started playing Monster Hunter World, and I was told it is very grind heavy, and I just want to ask in advance how to prevent most of the grinding and which way to take, what to avoid, how and where to skip unnecessary grinding etc. to become stronger fastest.

The best way to get strongest fastest is 'get good'.

Monster Hunter always has been a grind heavy game, because good equipment requires a lot of monster parts. There is no quick way to the top.

The best way to do this is to try all of the different weapon types, pick the one you feel most comfortable with and practice with it(and by practicing i just mean play, dont do the same monster over again unless you need his parts).

Watch tutorials by gaijin hunter to learn the finer details of the weapons.

What you can do, although i dont recommend it unless you know how to play well, is to only do all the Key/Mandatory quest. This way you can do the more difficult monster sooner, but it makes the game way harder if you dont know how to deal with them.

Happy Hunting

A good way to avoid some of the most difficult part of grinding (getting the rarest drops from monsters) is to do the Weekly Bounties. Completing all of them will net you a golden voucher, this can be used to trade for a rare monster part (like a gem).

The only problem with this is you need to be a decently established hunter to begin with in order to clear all of the Bounties, as they may have you fight tougher end-game monsters.

As others have mentioned. Monster Hunter is built and designed around the hunting/grinding loop. If that style of game is not your thing, then Monster Hunter is probably not the title for you. Even though they have made tweaks and changes to make the grind less so. it's still very much there.

Stronger, is also up in the air, when it comes to Monster Hunter. Once you find a weapon type your comfortable with, you will instantly get that "stronger" feeling, even in the starter equipment. Me, for example, love and feel so good using the gunlance... but if you give me twin swords. I'm probably going to triple cart before the Monster even enrages.