Wat is concentratie en hoe zit het met concentratie en ADHD?

[@marcelheijmans5472]

Hi, do you do coaching or things like that, I'm in Amsterdam, my gf just left me, and I need to understand more, I need to show her that it was ADHD and I really do care 🥹 and only tried my best ......I got this channel recommended from my stop with smoking coach