Hey, as the title suggests im 70hrs in but starting to get bored, i really dont want to stop playing this game tho. Is there anything to spice up the game?

Maybe get an attention span?

Try treasure hunting. You can find treasure maps and some drawings are not very easy.
If you're not a mage you could also try some Illusion, regardless your class. It's so fun to play with people's minds.

You didn't provide too much about what you've been doing these 70 hours, the best blind advice would be "do what you haven't done yet". Stealth and assassinations are very fun for people like me, the a.i. sometimes provides nice situations to play.

Roleplaying is always a wildcard in these games, you can create any backstory, any set of morality, personality and prejudices and then play the character accordingly, perhaps simulating food, drink, sleep necessities, can be fun.

Collecting all the books in one house and then sorting them and reading is one of my favs too. A lot of good books.

All i've done in 70 hrs is the main story, main plot for most guilds or all of them not sure how many guilds are in Skyrim, and really just a few quests here and there.

There is a lot more to do in Skyrim than that. There is the Main Quest, the Thieves Guild, Companions, College of Winterhold and Dark Brotherhood (those are the four main factions), the Civil War (side with either the Imperials or the Stormcloaks, your choice), try to become Thane of all nine holds, dive into the lore, travel around the land and discover anything you see, pick up quests and help out the people of Skyrim, pick up your Alchemy, get into contact with the Daedric Lords, and there's much more than that. The best way to experience all this is to make multiple characters that do only a couple of these things, and specialize in them; roleplaying. This way, doing things feels more in place, oftentimes, which keeps the game fresh.

If you're really getting bored, you can also come up with stupid builds or ideas (playing through the game unarmed, or with nothing than the armour you get at the start of the game), but going by what you posted, you have only discovered the tip of the iceberg that is Skyrim.

Just explore. Wander the map. I have almost 200 hours in the game and I've only been to like 60% of the dungeons. Wander aimlessly. Get lost in the world. It's really fun, at least for me.

That's about the time i started to see past the shiny.

If you play on PC you can use mods to make it interesting for a while longer, but give it a rest for a while and it gets it's shiny back. It's worked for me two times already

There's an awful lot to do out there...my current character is level 41, and barely touched any of the major questlines, and very few of the minor ones. As someone said earlier, if you are on PC then check out mods which may suit you.

Need more info. What kind of character are you playing? Do you RP? Are you on PC? If so, do you use mods?

needs more birds.

Time to try and woo a woman and if it's not challenging enough try Argonian.

Start a new game that highlights an aspect of playstyle you enjoy. If you really like dungeon diving, create the perfect character for that and see if you can find every dungeon! If you really like alchemy, how many different ingredients can you find and naturally level to 100? If you enjoy stealing, create a character that specializes in clearing out entire towns!

The fun of an open ended game like Skyrim is not just in questing or 'finishing' the game- the fun is finding ways to test yourself as a gamer, create specialized characters to do crazy stuff, explore every inch of the map, maybe steal all the cheese in the game and put it in one house, etc. And if questing is the only thing you enjoy doing, then create characters with different backgrounds/affiliations and do the quests a different way. Create 'good' or 'evil' characters and you will be amazed at how differently you view the towns you visit and the people you talk to (or ignore, or stab in the back!)