Looks like you’re using the wrong kind of anchor dude. If you are mounting into brick you will need a specific type of anchor designed for brick. More like one of these
The plastic ones are designed for light loads and exclusively for plaster/drywall. Once you put the screws in and tighten it down the fins of the plug flare put behind the plasters it cant be pulled out without tearing out a chunk of wall. The brick anchors will flare out within the hole clamping itself against the inner wall of that hole.
Looks like you’re using the wrong kind of anchor dude. If you are mounting into brick you will need a specific type of anchor designed for brick. More like one of these
The plastic ones are designed for light loads and exclusively for plaster/drywall. Once you put the screws in and tighten it down the fins of the plug flare put behind the plasters it cant be pulled out without tearing out a chunk of wall. The brick anchors will flare out within the hole clamping itself against the inner wall of that hole.