As a newbie player, going all-in preflop with AK in a full-ring game is not recommended. It is a strong hand, but it's not invincible, especially against multiple opponents. There are situations where going all-in with AK can be appropriate, such as in the late stages of a tournament when you have a short stack and need to take risks to accumulate chips.
However, in most cases, I believe it's better to raise a standard amount, about 3–4x the BB with AK, to build the pot and gain information about your opponents' hands. If you face a reraise or multiple callers, it might be wiser to proceed with caution rather than risking all your chips preflop. But it's just my 1 cent.