E-Kit Sounproofing?

I recently moved into a 2 bedroom apartment and have a Roland Td-17k electric drum kit. My partner that lives with me took some footage of what it sounds like when I'm practicing with the door closed from the lounge room and its definitely louder than I realised. Being an E-kit it is obviously a lot quieter than an acoustic kit, but its making enough noise that I could see it being a problem.

I've been looking into getting some soundproofing for the room that the drum kit is in, just wondering if anyone has had to do this before, and if so, if anyone could recommend some soundproofing panels or even just good soundproofing tips and tricks.

Thanks in advance!