Good to see you are using stop losses. Investors using FA can get their timing wrong just as often as the rest of us. Protecting the banks capital should be high on your trade management process.
Since you are using SL's you will know how much you are risking in each trade and therefore the total portfolio heat. Keep your eye on this figure more than how much you have invested. As you move your SL's up your total risk is reduced allowing you to invest more until you are fully invested. I don't expect you to go from zero to hero (100%) within a few weeks of starting.
The main message I would tell an FA investor is that it is OK to sell. You don't have to experience a horrendous draw down when economic conditions are bad.