Hi Tapalot
Sorry if I misunderstood your angle on keeping 'up'. However, I do think that energy protection also involves knowing what is good for us and what is not, and taking appropriate action. We could use 'protection' to make eating bad foods good for us, but we don't tend to do so. Energy protection involves honouring and respecting yourself too. Look at what your reasons are for needing the protection and why walking away is not an option. Would you tolerate consuming toxic chemicals in the same situation? Energy is just like food and drink - you get to choose what you take in, and how to do so responsibly.
When I am working with clients, there are some people that I know drain me, so I use some form of energy protection with them. My understanding of energy comes from Human Design in which I am a non-energy type, so it probably isn't the same concept as others are using here.
There are lots of techniques in William Bloom's book about Keeping Safe. He has also done one on Psychic Protection which I haven't read .... yet!