Hi. I've spirits in my home, some positive and some more negative. I don't ever have anything bad happen and one room is sealed with a ward for negative ones and their vessels. Over the last 4 months My energy is being drained a lot. I don't know for sure which is it but a have a slight suspicion. So, What can I do to keep my energy up? I don't mind them using my energy during communication sessions and I have told them not to carry on doing so.
I'm glad that it seems you keep (enforce) ground rules in your home. That's pretty important if you work with spirits on the regular. Otherwise it's like having an unlocked door to the neighborhood and a sign saying you have cookies. Eventually, something unwanted is going to stop by wanting to be greedy and take them all.
As far as maintaining yourself when/if you are feeling drained or like one of your guests is overstepping its welcome, there are a couple of things I can think of to help. They all involve cleansing and centering. Which may be easiest outside of your home (and influence).
Go out into the sunshine and just, well, bathe in it. Figuratively and literally. The first sunny day you have, go somewhere you can get grass between your toes, a breeze on your clothes, and sunlight you can let soak through your being. Imagine it shining through you, charging you up like a living solar panel. The sun's rays filling you with light and carrying away any heaviness, stress, or energetic 'muck' you might be feeling.
Take a mindful breath. Breathe in the light. Imagine it soaking through your body. Affirm You are a glowing pillar. Radiant health. A beacon of light, authority, and Self identity. Recognize your Whole-ness and presence within yourself.
When you feel ready to end the exercise, make sure you have a small walk, and a sip of water. Do something physical and mindless for a few minutes to ground yourself. There's no need to work up a sweat or anything, just do something mundane to bring your mind back to alertness.
... If you want an alternative to standing barefoot on the lawn and staring at the sky like a level-five granola munching hippie, you can do similar visualizations rain-or-shine wherever you'd like. Though having something that gives an actual physical feeling of warmth and comfort present makes things easier.
You could also enlist the help of a guide or guardian to channel the energy if you work with them. Instead of observing the sun, you could ask them to lay their hands to you, and help you willfully connect with the most 'good'/positive/highest vibration energy you can conceive of. They could channel the energy to you, just rest and feel their support and care for you as they show you how to reach up and draw.
Or if you are already practiced, just reach 'upward' yourself. Be it from the higher Self, a concept of the highest energetic/spiritual plane you can reach, the concept of the christ consciousness/universal consciousness/divine light. Whatever you feel a natural connection with, and whatever represents the highest and most potent form of that connection. Envision that energy coming to you. Let that wash over and through you in the same manner as described for the sun bathing.
Touch the right side of your head while you focus on your solar plexus chakra. Then imagine solar and lunar energies arising into you and above you. Be gentle. Be kind. Something cannot drain you without you participating in some activity. So if you feel drained, the best solution is to have better energy production and control.