Hi, Firstly have you learnt to close , there are some simple techniques, I like to use the the lotus flower method, just simply envisioning myself in the centre of a large lotus flower and seeing the lotus leaves close around me , all the while chanting a mantra dispelling negative energy and asking for only the highest loving energies to remain and protect me, you have to have a firm attitude to this , totally trusting in your ability to dispel negativity, you say that you want to keep certain energies around you, but until you are more developed it’s probably better to close completely , the more you work at this the stronger your control becomes, until in the end you can close and open at will , hope this helps .