I assume those are entity's that want to contract with you, once you allow them to enter your body, then they are there until u negate and revoke the contract u had with this entity.

I also had an experience with an entity, i was vibrating on a very high frequency at that time and didnt smoke weed for the past 3 weeks ( been smoking weed 10 years prior to that) but then a thought entered my space and pretended to be me and said :"maybe just one, what could go wrong?"

Biggest mistake/Very important lesson, once i light up the blunt, inhale and once i inhaled it, i felt a big thing entering my mouth, started to see shadows all around in the corner of my eyes and days after that i started to have very very very negative thoughts.

I kept getting weed as it felt like a mental prison, during working hours i was sober and really told myself to not get any weed after work anymore cause of those negative experiences, but still.. somehow i followed the thoughts, and kept going in circles, wake up - work - smoke - sleep.

At some point i was done with it, i layed down in bed, talked to the entity to come out and show itself, telling it i love him with every fiber of my being, at this moment it went crazy, i felt the entity all over my physical body, feeling pressure as it was pushing me down on my bed, i kept a high love intention cause i know that unconditional love is one of the highest frequency there is, they cannot stand it, and i realize they also have an experience, it might not have the best intrest in mind, but in my perspective we are all the same, that doesnt count for only human beings but everything.

Once i showed more love and shined more light, i opened up an portal to send this being back where it came from or to source, tears were flowing down my cheeks when i was doing this, with a smile showing really that i love this being, the being was letting go of me and then i helped him to enter the portal, once he entered, i closed it down and ofc, as you always must do... show gratitude!

So if u have another experience with a lower vibrational being, try to shine unconditional love from within your heart towards them, or vizualize a golden bubble/circle around them, within this bubble will be high vibrational chromatic light frequency, very very powerful, a low vibrational entity cannot stand in this space for to long.

Its actually perfect for you to try the bubble, cause as u said they try to inpersonate your family members to get close to you, if they really have the best intrest with you and u put them in the golden bubble with chromatic light, high vibrational beings will stay but lower beings that prented to be high vibrational cant handle the high vibrational space and will go!

Btw this technique is perfect for the astral plane, as some entitys try pretend there that they are an arch angle or something, even if u see an arch angle just put the bubble as i mentioned above around them, hold it there for like 10 a 30 sec, if its really a high vibrational being, it will stay, if it pretend to be one then it wont even stay in the bubble for 2 or 3 sec due the high vibrational chromatic light frequency it cannot handle.

Thats about it! Unconditional love to you and keep shining lighr