Walking! 9 months old!

So on the 14th, a week ago today Amulek was 9 months old. And we had his checkup- just for an update- he is 27 1/4 inches long, 19 lbs and 4 oz. and VERY healthy. He did'nt gain very much from 6 to 9 months, he has really slimmed up since he is ALL OVER the place. Im telling you the kid is NON STOP! But I love he is so active.
And yes Amulek has started to walk!!! UH OH!! He has taken one step towards me before, he started that like 3 weeks ago but after the one step he'd always squat down and reach up for me, but haha yesterday I was trying to do some work on the computer and he wasn't happy with that, so what did he do.. he starts climbing the side of my chair... he climbed up onto the foot rest while holding on to the armrest, then proceeded to climb so his feet were on the seat, still holding on to the armrest!! I laughed and was shocked of course and I asked him "what are you doin' kid?!?" he just smiled, but I took him down and placed him standing on the floor which of course made him upset, and so out of anger he took 3 steps right back to me and once he was in my arms he let out a huff mix laugh like ha! I got my way. (He IS so much like his mother)
So he has begun walking. How should I feel? 9 MONTH-walking, nothin but trouble!! He already gets into everything now he will be all over this house, and OH! yeah- he is also climbing up our gates we have set up in the house!! What do I do about THAT!!?!? I can't keep that kid from anything he wants to do, he is gonna be one head strong determined kid! Scary, but we love him so much! He really is the greatest blessing!