There is nothing wrong attending Spiritual or Religious Group Activities. You are trying to justify your reasoning for them, which is not bad. Now if you are doing all that so you do not have to face yourself, and you are doing it to avoid yourself, then that's not helpful to you in any way. That longing, that missing something feeling inside is a really good feeling to have, it's the start, door of your Spiritual Postmortem. Next time when you feel that way, don't run, don't keep yourself busy, talk to yourself, ask yourself what is it? I can answer it for you, but then that answer will be for your mind only, I want you to have "Direct Experience" of it. You can start asking what is one thing that those Spiritual, Religious groups are giving you? The Sense of Belongingness. Right? You feel you belong to something larger than yourself. When you sit alone, that's what is missing from within you. Now that you know, pay attention to WHY you are ATTACHING your Sense of belongingness to something "External" to you? Keep going within, keep questioning yourself, until you get your answers!

~ Adiguru