Good suggestions above and Welcome to the Forum..
I'm not a fan of tying down awnings... A tied down awning takes longer to roll up and that extra time can be a problem if a sudden wind comes up or a storms sneaks in....and it does.
If it gets goo windy for the awning to "survive" on its own, we roll it up. Have seen a number of awnings destroyed while tied down...usually causing damage to the trailer as well.
Also if we leave camp for the day, we always do two things:
>shut off the water supply
>roll up the awning
Notice this one was tied down....:E