Qual è la differenza tra strada e via ?Sentiti libero di rispondere con un esempio.

Well "strada" is the generic term for a path that connects two points (physical or not). So i think you can translate it as "road/way".
la strade del successo = the road/path to success
hai scelto un percorso difficile nella tua vita = you have chosen a difficult path in your life
non conosco la strada che porta allo stadio = I don't know the road to the stadium

"Via" is a public way with buildings on both sides.
https://www.minube.it/posto-preferito/via-firen...
https://www.greenme.it/viaggi/italia/via-corona...

"Viale" is larger than "via" and can have trees or buildings on both sides.

Via dei Fori Imperiali in Rome, is called "via" but technically is a "viale"
https://www.virgoletteblog.it/2017/05/13/lo-sfo...

"viottolo" is a narrow road, often in a rural area.
"lungomare" are roads that run along the sea.
https://siviaggia.it/viaggi/fotonotizia/lungoma...

While the concept of Avenue/Boulevard does not exist in Italian.