The doctrine of the Trinity is a difficult and yet crucial doctrine. Christians who try to explain it often end up getting tangled in their own words. If you can get a trained expert with years of practice, a faithful Christian who can use Scripture properly to explain what the doctrine is and why it matters, then you should jump at the chance.
The East London Tabernacle Baptist Church recently hosted a conference with Dr. Fred Sanders. If you scroll down on the linked page to his bio, you will see his qualifications. If you listen to the audio, his qualifications will be very apparent. Dr. Sanders spoke on the doctrine of the Trinity in three sessions, along with a Q & A afterward. It is excellent.