I professionally develop websites on Drupal.
And I like the D8
The switch was difficult, but the theming is much easier in D8 than D7.
You can continue to use D7 and then just migrate the site to D8, when will support seven. In Drupal 8 for this is the Migrate API https://niklan.net/blog/159.
But if you want to learn Drupal, it is better to work by eight, because the principles that are put in it will be in Drupal 9, so that knowledge will be useful.
You didn't specify what version of PHP on your server. D8 much faster in PHP 7.
And if you need a good shared hosting for Drupal, I recommend to try the specialized hosting Drupal from ra-don
. Place they have their own blog and a few client sites. Here's my review about their hosting https://zniki.ru/blog/66.