As the title says, with every character I make I always have a hard time coping with the fact that they are initially weak and inexperienced, which never really makes much sense to me. Due to this it's actually very easy to roleplay a complete good at nothing, but why he should be? Why do characters forget everything they knew and have to learn just about everything from scratch, aside those few specific race skills? Do you have an explanation for this in your backstories?

Sometimes I use it as a part of my back story and other times I use the pc console commands to make me strong from the get go lol

Maybe your skills deteriorated while imprisoned?

Currently playing a Nord so, Witch stole my armor?

Perhaps you were just an ordinary peasant, caught up in Stormcloak business? The game wouldn't be much fun if you were a tank from the get go.

In half a day? Imperials should had hit me pretty hard on the head I guess

I usually incorporate the Gods banishing me in a prison and stripping me of all I own and taking my abilities as well. Mainly Azura messing with me since I play mostly a Dunmer.

Actually I don't care much for TES leveling system tho I do love the story and game play. I prefer the exp per kill then skill points at level up method opposed to leveling each skill individually.

This is kinda why I like Morrowind, I like starting with some proficiency.

...actually, that's my RP excuse I mean, my character was wounded in the skirmish and all of that. The time he's weak is the time he takes to recover (until a certain level, then once reached, I switch to "that's my original character level, and he's actually improving since there").

Good one!

You can pretty much roleplay the weakness with, well, that you are just about to become a legend? That you aren't one yet. That'd be the most common scenario in my mind. A starting mage, full of ambitions, destined to become one of the greatest sorcerers ever, a legend of his lifetime ("several, if you're talented" ). They all started somewhere, you know. It's just that you possibly don't like the timescale, but hardly anything can be done about it except imagine otherwise.

There are other ways, though, yes. A mage / deity took all your powers and you're back to avenge; you've had an amnesia; you're a hero reborn. Etc., etc.

Or maybe you'd want to think that your character WAS just an ordinary person with nothing special before the start of the game? A twist of fate forcing your average Jack to train himself a hero. Besides, they are good. At level 1, the first time you pick up the sword, you can pretty surely manhandle your neighbor with it anyway.

Well thanks for the inputs. For my next character I'm going to RP a farmer [thanks to Arthmoor's alternate start mod] with no combat skills whatsoever and see how it goes.

Well you do go to jail which means the Imperials confiscate whatever items you are currently carrying. I also roleplay that the Thalmor use magic to make you forget spells that you may have learned before hand. The magic wasn't full proof leaving you with Flames and Healing (Conjur Familiar if Breton and I think it's fury for High Elf). Not the best idea but you play the hand that's dealt to you.