The fresh water in the river decays if it stops running. Sexual pleasure also diminishes when it becomes familiar and monotonous. Without making efforts 

to change and try new things, sexual pleasure and happiness decrease as time passes. Having sex is an action that needs a partner as an active agent. You 

may not be able to change the whole action of having sex only with your own efforts, but your partner will gradually follow you if you initiate change. When 

having sex is perceived as duty or work, or even involves purpose or reward, it cannot be fun or pleasurable. You may want to avoid having sex and consider it 

as something tiring and boring. 

     You used to enjoy having sex feeling happy when you were in a dating relationship and newly married. Then, you became familiar to each other and to 

having sex repeatedly with the same method. It lost the freshness and novelty. On top of that, you became busy with career and child rearing making having 

sex not only dull but also just meaningless. Familiarity in sex leads to the negative perception of sex, so you may need to keep adopting changes and diversity 

to maintain interest and excitement. Changes and diversity don't include changing partners but trying new and diverse methods. 

     If you feel that you have sexual problems, you must make efforts to restore freshness and excitement by changing and diversifying actions, atmospheres, 

and places. You must build your ability to apply and initiate different methods continuously not to go back to familiarity and boredom. To be able to do so, 

you must train yourself with the help of professionals who accurately understand the operational mechanism of human mind and sexuality. You must have the 

will power to change for the better and be able to invest your time and effort.