1. Bank often. Bank the thing you do not need in the early period of time and that you do not use often. The reason behind is that you will die often in the view of insufficient experience. You will lose everything you have once you die and others can loot them.
2. The best advice for you is that do not trust anybody. The world of darkfall is full of danger, danger people, danger surrounding. People who seem to be friendly to you will try to scam you. They will try to jump in front of your attacks to turn you grey. This will allow them to kill you without any penalty.
3. Keep spare gear! When you get an upgraded piece of gear, please do not vendor your old one. At a point, you will lose everything on you, especially in the case that you carry everything you have instead of banking them. If you vendored all of your extra gear, you will be left naked. Stockpile a lot of extra gear in the bank. Not just one extra set, many extra sets.
4. Save the good stuff. It is attractive to cruise around in that shiny new kit you just looted. However, under you unconscious you are in danger. The shiner the gear, the bigger a target you become. Take out good stuff only when you are in group where you trust the people, at the same time you should take enough food and potions with you to help yu get away from danger.