I hope i'm posting this in the right section.
You see on the lock switch there's a tiny part that bulges out,
Now because of my Otterbox hardcase makes it harder to lock/unlock the phone, i had to pull that part with my nail to lock/unlock the phone..

But now thanks to that, the tiny part is chipped off
And now it's even harder for me to lock/unlock the phone..

So is there any way to get some sort of replacement just for this component?
Can anyone recommend a website that sells this?
I think i saw one but i can't remember where..

Also, is it difficult if i want to do it by myself?

you mean something like this?

Yea i found some of those at ebay,
But i was looking for the one that sells the lock switch part separately.. Oh well i guess i don't have any choice but to buy all of 'em..