The alto saxophone is a great outlet for your creativity. Music from a wide range of genres can be performed on the instrument, including classical, jazz and rock and roll. Music is made up of chords and scales, and the more you learn, the better your technique becomes. There are numerous scales to learn, but the effort is worth it, as you will be enhancing all areas of your playing. Through regular practice you can master these scales.
Locate a list of scales to learn. There are numerous available online. You can find a fairly comprehensive one by Paul Elkouss on the "Sax on the Web" forum.
Locate an alto saxophone fingering chart to check fingerings on the notes in the scale. There is an alto saxophone fingering chart on the "Woodwind Fingering Guide" website.
Practice the scale in all twelve keys. Start slowly, increasing the tempo on your metronome as the slower tempo becomes easier.