Just remember to always craft your items and upgrade your workbenches at your apartment. Keep an eye on your health, any time you are at 50% or lower health, use a healing item. Ensure to upgrade your weapons based on where you are putting your skill points; for example, the speed skill will give bonus damage to lighter, fast weapons. If you have any issue with completing the game, try it on easy first and give it a couple of play throughs while taking your time.