Welcome.

On the subject of guilds, there's a good list of them
here. Being in a guild will make it easier to quickly get help ingame.
Hmm...random tips...
- Press K to customize keymappings.
- Use a mix of medium and heavy armor in melee for protection + less stamina usage. Use light armor for foraging and crafting, and light or a mix of light and medium for magic.
- Set chat window to USER so you can monitor all channels. Use the little button on the lower-left side of the chat window to change which channel your messages are sent to.