Vladimir;

Have you read some of the forum topics that can be found just on the right side of this screen? Try reading the Training Peaks tagged posts. If you are training on hills or mountains then you must convert rTSS to hrTSS. hrTSS is an imperfect metric and you may need to apply some of the modifications to it like adding 1O TSS for each 300m of vertical. If you are doing the General Strength you should probably give yourself 40-50 TSS for a short strength session and 50-70 for a full hour. For a full Max strength session use 80.

But most of all you must listen to your body. If you are feeling more run down and tired and nothing else in your life has changed, then you probably are getting more tried from the training. You need either to give yourself more recovery and/or back off a bit on the training load. The CTL numbers are only way to roughly measure what we think is happening for most people most of the time. This does not mean that CTL is correct and your body is mistaken.

In most cases like this it usually means that you increased the training load too fast in the first weeks. This made your fitness shoot up but then the fatigue catches up with you.

Without more information I can’t be sure.

Scott