If you want one, you should choose your companions based on what they can teach you.Į.g., Faendal in Ravenwood and Aela, the Huntress of the Companions, in Whiterun can teach you archery, though if you want their help, you need to finish their repective quest lines. Sometimes they just get in the way of your shots or accidentally aggro mobs. Alchemy helps as well you can learn how to make poisons and use poisons. I recommend training Smithing to make better gear and training Enchanting items to improve archery.

You'll also want Muffle (enchantment or spell) and the Silence perk, that makes walking and running not affect detection. Get the perk that reduces all heavy armor weight and movement impairments, Conditioning.

It's totally viable with the right perks.