Until level 40 it's "easy" to level up, but after that it's very slow, I think the furthest I got was 46 and it was a very long game. So basically no, it is not possible, you will get tired before. It is worth mentioning that the character level has nothing to do with the skills, you may have reached your archery limit, but every time you kill someone with a bow, that exp goes to the general level. With several games you will see what is worth and is not worth investing. For example, I usually took my cavalry skill to the maximum, today I see that with reaching 100 I already have everything I need from that line, and to reach 100 you need 5 attribute points and a talent point, that's 4 talents that go to a more productive place.
Later today I intend to publish a post about the "perfect character" I'll bookmark it for you to read later.