Did you start over with a warrior or convert your mage? If you restarted, the warrior's swirl attack is handy when you get surrounded, and you can hit and run so you are only taking on a few opponents at a time. A bow can be handy for that early in the game, or you can exit the town and level up a bit on the orcs outside (though I would not go very far south, since you will run into a couple much stronger ones there).
differences between classes (minor spoilers)
Early Starter Tips (NON-Spoiler Version) (contains much of the information in the above topic).
Eventually,
restoration potions will become more effective that health or mana potions. For now, try leaving one teleporter stone near a bed, and teleport back and forth to sleep/heal.
Did you cure both soldiers in town, and do the other quests? Did you loot (and steal from George) to get some starting equipment? You can kill the rabits and cow for some experience, though at level 5 you may not get much (on level 1 they would give 50 experience points each).
I would raise your constitution a bit at the start of the game, but once you start getting better equipment, you will likely get a good portion of your hit points from equipment bonuses and/or charms.
I started with a sword and shield, then switched to a 2 handed sword for the better damage, and eventually switched back after getting a decent damage one handed sword. This had a little lower damage, but allowed me to equip a shield for the added protection and bonuses.