Dear Ksksat,
Its very natural human behavior that, when ever we initiate something after some time we tend to get bored or doubt its impact on us.
We all love Arunachala more than any thing in this world & if we plan for a month visit to Arunachalam, initial few days will be very interesting and gradually we may not have the same attraction even though we have the same love & respect all the times.
These feelings are very natural in spirituality or anything in the world, so in order to overcome the feeling of boredom or frustration I adopt different practices like Singing the arunachala shiva song inside or watch the pic's of Arunachala or read some thing about Arunachala or talk to some one about Arunachala. So the bottom line is I dont stick to the same practice and ensure that he is always inside me in some way or the other, which is also a part of sadhana. Me being a Gemini, change is always constant in me & I get bored with things quickly and with different practices I will never give the chance of boredom to creep in.
My advice is try different things but never let boredom or frustration to creep in at any stage coz finally we have to go to him even if we are bored.
Om Arunaachaleshwaraaya Namaha!