I've almost maxed out my main skills and those are conjuration(100), one handed(79), Enchanting(68). My minor skills are restoration(43), Heavy armor(35),Light Armor(40) and speech(51). I was thinking about putting some perks into destruction and maybe two handed but I really don't know what else to level at this point.
Goooood. I can work with this.
First things first, get the ebony blade and use it for a while. Its power is based on one handed and one handed perks, but it gives you skill in 2h. Very useful.
Work on getting that enchanting to 100 next. As I'm sure you've noted, it's really easy to level enchanting. You're gonne want the five levels of the first perk, and insightful enchanter. With these you can make a set of equipment that will lower casting cost to 0 for any given school of magic.
Best spell to level Alteration once you have such equipment is Telekinesis (~10 minutes to max). Restoration should be obvious enough, but don't forget to turn undead. Dunno if it's been patched, but you used to be able to level it by casting heal other on corpses. It's one of your focussed skills anyway, so grinding may not be necessary. Destruction's gonna be the hardest magic school to level; The only solution is to just USE it. For illusion, cast muffle and invisibility around NPC's.
Next, focus on block. This one can take a LONG TIME to level up... If you're a pansy. Set the difficulty as high as you dare, then take the best shield you can find (or spellbreaker, I'm fond of spellbreaker for normal use) and pick a fight with a giant (or ancient dragon, if you're feeling lucky, though I don't believe you'll be seeing those for a while yet). Just absorb their melee attacks and get in a bash whenever you can... Block goes up incredibly fast this way. You can also level light and heavy armour like this, though it's even riskier.
Smithing is pretty easy to level. Get all the gold you can (the transmute spell helps), and then make bajillions of rings. You'll hit 100 in no time. Requires no perks, too.
Alchemy is tougher. A potion of blue mountain flower, blue butterfly wing and giant's toe levels it up pretty quickly, but without taking any perks, it will still be incredibly tedious at higher skill points, especially with the scarcity of giants toes... Enchanting equipment with fortify alchemy may offset this somewhat, not sure if that affects the experience gained by value of the potion.
For speech... Level it up normally if you like. If you want to exploit a small flaw, go to the blackbriar meadery inside of riften, and talk to the wood elf behind the counter there. Ask him about Maven, and spam persuasion. This will max out speech pretty quickly (~35 minutes, 20 from where you already are). Otherwise, sell expensive items one at a time to level speech faster. The giants toe potions are a good item for this.
Pickpocket is the easiest stealth skill to level normally, you may have to save scum though (save the game before attempting a pickpocket, then reloading if you fail). Depends on whether you can talk your way out of the situation. Stealing more valuable items/gold lets you level pickpocket up crazy fast.
So, what's that leave? Sneak, lockpicking? Lockpicking should be increasing in the course of normal gameplay. If you're having trouble, once you have 200+ lockpicks, just find a master-level lock and keep forcing the lock continuously. As the picks break your skill will increase. Sneak is the trickiest... I can't give any advice there that wouldn't be extremely obvious anyway.
Of the three categories of skills, stealth seems like the runt of your litter, so if you haven't used your Oghma Infinium yet, save it for the later levels in those skills. And don't forget you can pay to raise skills five times each level, and then pickpocket/trade your money back!
EDIT: I lied. I just remembered that if you have Shadowmere, you can cast Wall of Flames with two hands (NOT dual cast!) underneath her continuously to level up destruction quickly and easily, her health regeneration is faster than the damage she takes on normal difficulty.