@COMPU73E This also happens to me with very big titles ( Witcher 3, Baldurs gate ect ). I have lot of fun playing them but like most of the things in life, self pace is the key. You need breaks from them to get back with more energy or just don't get back.
One game I keep doing that along the years is Skyrim – play it for few weeks, stop for months, come back and play again for few weeks. That game managed to keep me back despite its years.