Assalamualaikum, if a person does the secret habit due to addiction to watching haram videos and is unable to take a shower, should he abandon the remaining prayers of the day knowing that they will not be valid without gusul or still pray?

He should control himself give the top priority to preforming his salah, let's say there is no escaping him doing that which is forbidden then he does it when he is able to shower so that he can pray and his top top priority should be being able to pray all 5 prayers. Allah almustaan don't let this ruin your salah.