I've recently started yoga and wish to pursue it as my main form of exercise as I actually really enjoy what I can do if it. I am able to dedicate about 30 mins a day. I've noticed there are so many types. What is a good place to start? I tried a few you tube vids but I'm just too inflexible for tricky moves and have trouble keeping up with the pace. I know there's vinyasa and Ashtanga and restorative and others. Not sure where Ia best to start from?