Does sharing our plans really cause them to falter?

Assalamu alaikum, I’ve noticed something puzzling: whenever I discuss my plans with others or seek their help, things seem to slow down or unexpected obstacles appear. By nature, I’m quite private about my life, but I still end up sharing enough for people to assist me. On the other hand, I’ve seen those who keep everything to themselves-truly nothing shared-succeed smoothly. Is this true? I’d appreciate your insights, insha’Allah.