Are the following actions biddah, how to recognize something as biddah?

Assalamu Alaikum.

When someone loses something and they say Durood for blessings before making a prayer to find it.

Also if someone makes a routine to say Durood e Pak 3 times before going to sleep, that wouldn’t be biddah yes?

To summarize, if I make any routine to do a particular good deed on a particular time or when a particular situation arises, does that make it biddah?