In the first episode of the 4th season of Better Call Saul, Mike is asked to sign a birthday card for Tina, what did Mike write to her? I can't understand the writing.

In the first episode of the 4th season of Better Call Saul, Mike is asked to sign a birthday card for Tina, what did Mike write to her? I can't understand the writing.

Mike writes the following:
Reach for the
stars!
Barry H
It's just a generic message, there's no real interesting information/easter egg here.
Reach for the stars! Barry H
This phase is actually a bit odd or ironic, because this is NOT common phrase seen on an adult birthday card for a women already in the workforce.
It's something that would be more common on a child's birthday card, someone graduating from high school or collage, and/or someone changing directions in life, as "reaching for the stars" is about embracing the future and hopefully finding what you are looking for. It's geared more towards a shift or change.
With that being said, you could apply this phrase in a few ways