Buy another gadget. I've used one of those Gunson easy bleeds for years (
https://www.youtube.com/watch?v=Lz8t6ZkVSQM) and have had little trouble with it unless the connections on the top of the reservoir leak then it is a pain...
...similar reservoir pressurising systems are available...
...but more recently I've been playing about with a vacuum system that sucks fluid through from the bleed screw. Mity vac seems to be the forum favourite but cheapo versions are abundant (which won't last as long but hey you gets what you pay for)