First attempt at game development Aiming too high?

First of all- Hey and thanks for reading!
Trough this COVID-19 Madness i realized that i cant play a card game that i really like.
(some sort of Contract Whist but closer to Bridge with the over-all rules)
And Because i don't have another 3 players around me and no mobile app of that specific game i thought to myself maybe ill just make one?
Might be over my head here but i have a lot of free time,the will to study and I taught myself Photoshop and Illustrator few years ago and now days working as graphic designer from time to time...
To the point- If is it something realistic, where i should start? is unity the correct engine for me?
Basically looking to make a simple 2D card game with no AI needed but online players and might be bit complex rules
Thanks again and have a good time!

 

Unity can be used to create almost any game, but networked multiplayer games are a terrible choice for a beginner project, as they are extremely complex.

 

Have to agree. Try making a single player version with AI opponents. After you have completed a polished single player game, you might have learned enough to tackle a multiplayer version. Do not underestimate the complexity of multiplayer game design.