Hello Mau; Your fingers will bleed. You'll find out the guitar has more scales than most fish. You'll figure out why they call the F chord ... the "F" chord. You'll practice runs until it gives you the runs. You'll wake up in a cold sweat screaming "it CAN'T be done!" . Just when you think you're getting a grasp of scales ... someone will hip you to "modes" ( sad day indeed).
Then all of a sudden, one day, you'll knock out a little tune and go " that wasn't half bad", and you will be hooked. You'll be SO glad you rode out the learning curve. Plus you will never LISTEN to music the same way again. When you find yourself in an insatiable quest for that one guitar, that one amp, that one pedal will surely break you free ... you'll know you've made it - you're a guitar player.
Here's to hoping you'll be joining us. Stick to it. Commit. If you really try - it will come. You will be happy you did.