somethingisgoin·2 anni fa·discussI had exactly the same thought at first but then realised they're referring to the collection rather than the APIs. Therefore singular is correct.
somethingisgoin·5 anni fa·discussToastmasters. I did it for a few years and it helped a lot for work, job interviews and wedding speeches. It can be a bit over the top at times but it's great practice and will help with all the problems you describe.