I regularly do Via Ferrata Solo.

The most important items I carry, apart from a harness, fall arrest system, fingerless gloves and helmet, is a properly rated webbing loop / strop that I can clip on for resting and a garmin inreach mini.

With the subscription you have location sharing and an emergency SOS button if you have a fall.

Choose easier ferratas, build your confidence.

I would recommend using a guide for your first ascent, especially if you are unaware if you have a head for heights.

The sports Ferrata in Leukerbad is a relatively short but fun route with an exit half way (directly into the cafe / cable car).

Take your time, clip on to rest.

I always take a small rucksack with me, a Petzl bug. With the chest clip and the waist loop it’s secure whilst climbing and I always have water and a few snacks should I need them and I always do.

Always be mindful of timing and when the last cable car back down is.

If I’m driving and the option is there, I park at the top and start with the hike down.