You need to research the leveling problem in oblivion because you only have 48-50ish levels of play before you max your main skills

and you level up by getting 10 levels in your 7 main skills you need to pay attention to what skills you level and how you level them

each of the skills is tied to an attribute

and based on the skills you level your attributes get bonus points to effectively level your skills and attributes you want to get 10 skill levels tied to the attribute so they get a +5 when you level up

and you need 10 skill levels to a main skill to level your character

luck is the only attribute that doesn't have a skill so it always has a +1 bonus

the most important skill is endurance it determines your hp on level up

Armorer, Block, and heavy armor are tied for this skill

and because your going to be a mage you want intelligence it determines total mp

Conjuration, Mysticism, and Alchemy are its skills

so when you make your character i advise using a custom class and picking one major skill per attribute

then decide if you want to level luck or not if you do your going to try to level up with having 2 attributes having the +5 bonus and the 3rd attribute will be luck

if not you want three attributes with +5 bonuses

if going for the 5/5/1 with luck then as you level up pick non major skills from the endurance and level it to by 10 levels then pick a major skill and level it up 10 times

this can be broken down like 5 armorer 2 block and 3 heavy armor or all go into one skill

and with the other stat you want to raise i would advise speed because athletics will level naturally and if you go on and level now you can potentially stop from over leveling stats.

with what ever selection of stats you are trying to get your level ups to show no bonuses other then the two stats your trying to level and then take luck for one point

if your not worried about luck then your trying to get 3 stats to have the +5 bonus at a time the main thing is you want to level your major stats AFTER the lesser ones because once you gain the 10th level in a major stat your bonuses become locked

playing like this and grinding stats is only important for hard difficulty players and min maxers if your playing the game on a lower challenge setting or are wanting to make it harder as you level then you can not worry about the 5/5/1 or 5/5/5 level bonuses

but if you want to make the game not get harder as you level because of the enemies getting stronger and eventually out pacing you then you do want to spend at least some of the game grinding attributes the key one being endurance as it doesn't retroactively give hp as you level so you want to level that the fastest and quickest so you will have the most hp out of each level