1)How do i restore my attributes?My character has 20 one handed skill and it is stuck there
2)How do i find my companion?When i ask other mercenaries to follow me they keep saying that i have a follower(but he has stopped following me)

2) Try fast travelling to cities a couple of times. That usually brings your follower back.

1) "player.modav onehanded 0", or -1 -> +1.

I dont want to restore my one handed skill using cheat

Jesus christ its like saying rebooting your router is cheating the internet.

p.s. it will problably fix itself when you lvl that skill again, or you can just load a previous save without the buged skill.

So you are saying that my skill is bugged?There is no way to restore it using an altar for example?

Yeah, it's a bug. There's no condition you can get ingame that stops skills from going up, just ones that penalize skills. There's another bug that penalizes a skill for no reason as well (it will show up as red). Leveling up fixes it.

My skill is red.What i am supposed to do?If i use cheat how do i know what my "normal" level of that skill is?

If your skill is red then it usually debuffed by a disease (they show up in magic under active effects along with the stat bonus amounts) and praying at any altar should fix it. TBH we need to know more about your skill IE what is meant to be etc.

If its a display problem then its either train the skill up or the cheat console (in this case debug console is a more appropriate name).
Personally I would do this put in "player.modav onehanded 1" and then "player.modav onehanded -1") for net change of zero. Dont worry it wont remove disease etc if you got any.

First check that you don't have any effects on you in the Magic menu. If you do, fix that, and see if it does anything. If that's not the case, load an earlier save or deal with it until you level up again. Leveling up usually fixes it. The game still seems to keep track of what it should be it just displays it wrong.

when you level it it will reset.

I Used cure disease potion but nothing happened.However the console command you gave me worked and now my character has 73 one handed!Thank you!