Without more information we can't be very much help BUT I'll try to give you some pointers.
For a beginner I would suggest a number of things:
1) Play on novice till you get a handle on the game, its combat, enemies and other nuances can be a bit overwhelming at first. I am a 3 decades RP'er but Skyrim was my firsy ES game and I was getting owned because I didn't understand the game. I actually bought Oblivion, ES IV and used the Arena to hone my combat skills.
2) Do a lot of sneaking along with using a bow to knock your enemies down a bit: This will help in a lot of ways including getting used to archery which will be helpful in the long run and give you a leg up on your foes. You will find a lot of griping in the forums about a stealth archer being overpowered in the game but learning this archtype of character will help you immeasurably as you find your footing in the melee department.
3) A one hand weapon and shield character is the best to use to get your melee feet wet since it gives you the most balance between attack and defense and don't be afraid to perk your blocking skill since it cuts down on the amount of damage you take.
4) You need to be very selective in the way you use your perk points, don't spread them out too thinly as there's so many skills you can invest in. Invest in your armor type, melee weapon, archery and blocking at first and don't go for other skills until you have a solid foundation with your fighting skills.
5) Don't waste perk points in lockpicking. After a few dozen locks or so you will gain a 'feel' for the locks which will make them much easier to pick and result in many fewer broken lockpicks. Unlike Oblivion lockpicks are very easy to find in the game world including merchants and as loot from enemies. Feel free to save before attempting to pick a lock and practice on it, you will find you will quickly pick up the nuance after a number of tries.
6) If you take a magic skill make it restoration so you can heal your character and follower and turn undead.
7) if you get into a fight you can't win run away! It's not cowardice as you can always come back and face them again when you are stronger.
8) Pick your dungeons carefully, there are many very hard ones and many easy ones as well. Also don't be afraid to leave a dungeon to heal up and prepare before returning. This also gives you time to formulate a better plan of attack.