Surely you are wrong in what you are doing. You must pray Isha with the congregation even if they pray it immediately after the Athan. You must not postpone it until the middle of the night unless you are a woman or you are with a congregation in another masjid.

There is a hadeeth of RasoolAllah s.w.a that he said the best time to pray isha is nisful layl? So I do not end up going to congregation for Isha. I stay at home expecting to pray at the best time.

Prayer | March 25, 2014 4:22 pm
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I have learned that WITR prayer should preferably be prayed as the last prayer of the day. But if we pray Isha late, like 1:00 AM and fajr is due at 4:35am…and we are awake through the night, then at what time is it appropriate to do ISTIKHARA?
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If a person starts to recite during prayer then his mind wanders off and he is not concentrating, then when he finally realizes that he is day dreaming, he cannot remember well what he recited earlier, what should a person do in this case?