Even the most skilled developers get stuck from time to time, and there's no shame in asking for help. There are some specific places related to both Bootstrap and AngularJS that can help you on your way, should you need them.
The first place you should always head to if you have a certain issue or just need to jog your memory is the official documentation. Both Bootstrap and AngularJS have great documents. Previously, there were complaints that those of AngularJS were vague and lacking examples, but they've improved drastically in the last few years. For more details, refer to http://www.angularjs.org and http://www.getbootstrap.com.