How was your first tourney experience? When you get used to playing under pressure it's fine and you'll start performing better. My first BB tournament was in CT..and my first opponent was Carl.
And you weren't kidding about B-Sledge.
Anyway, basic things to touch on.
-You mash buttons when you are getting hit. I saw like 5-6 counterhits on you in about a matter of 3 seconds in one instance. This isn't a good thing. Work on blocking mixups and learning what can combo into what from certain characters so a small level 1 hitstun combo isn't going to be mashed out of where an entire air combo and what not, it's alright to mash. But if I were using Ragna and saw you mashing buttons after I hit you I'd run up and jab you a few times, wait, then 2C you for a Fatal Counter combo. Blocking in the long run will do you much better.
-You have an overdependancy on normal grabs. Normal grabs are not 'bad' but there are better options in almost every situation than grabbing with B+C. Everytime you grab the opponent a 360A/B could've sufficed in that situation. It's alright to slip a normal grab in here and there, but a good player will be teching these throws so all they are doing is essentially just making sure the other person is awake, rather than going for damage.
-You mash 720. Not a good thing, probably an online tendency. Try to confirm your 720s to know when they'll work and when they won't. A whiffed 720 should be half your health everytime.
-Judging by the first 30 seconds of the Tager mirror, you guys don't know the matchup. Spacing and footsies guys. Spacing and footsies.
-Blocking in general. I saw too many random lows or overheads hit you. Overheads hitting people, this is America. But not blocking low is bad. In fact, you ate an awful lot of everything. Concentrate on blocking more. The more you block the more meter you get/the more impatient the opponent gets and you get to capitalize on mistakes.