As a new user, can I start using Bitcoin without having to understand the technical details?
Yes you can. After you use the bitcoin you will still get learned. But, it is still better to know the bitcoin before you use it even just the basics one. So if you encounter a problem regarding on using it you still know what you need to do. Besides, bitcoin is not hard to understand.
Welcome to the clan for the newbie here. First and foremost you should study the basic steps in trading, read some useful tips that has been shared here in forum, learned from the mistakes of others that they also shared here in forum and last observed the fluctuations of price in the market. They are basic but very important tools that you coild use in your starting of trading. Goodluck.