Unlike most other MMOs, leveling up in ESO is very casual friendly. The daily login rewards often provide you with experience scrolls that boost your experience gains by 50%, 100% or in rare cases even 150% (these are all free). Therefore I do recommend loging in daily to get these experience scrolls. of course at the start everything is overwhelming, your first character will take you quite a while. However, once you understand the game it will be easy. Most experienced veteran players can level up a character within a day if they want. You have to optimize your leveing setup though, you can learn more about that in the ESO Leveling Guide.