Theory 1: just move home 

I live in a studio apartment which is located at north-west of Tokyo station, and I have spent live a comfort life.
I can go to the grocery store and coin-operated laundry, whose store staff are supposed to be courtly quite quickly.
And I can go to a bento house within minutes. For your information, bento is a traditional lunch box in Japan. Bento has many varieties, for example: "chara-ben"（http://bit.ly/18o8BDf） is a bento representing some characters with ingredients; "eki-ben" is a bento that you can buy only at the station (eki＝station) and generally a little bit expensive.
Sorry to branch off story.

Despite that life, there is a problem.
What must be considered is the size of the room.

Too small.[1] The room is too small, like a house in Lilliput.
In addition to that, my body is getting bigger because my mission of late is a building muscle for health. Here is why I do not want to see myself with tottering along in future: the bigger my body is, the smaller my room is. If this goes on, my lilliput house would break to pieces…

You may have had an experience with that case this problem too. But you could clean up such a problem to listen to what I say. (That last sentence is a bit confusing! Maybe tell me what you meant in Japanese and I can try and offer you the English equivalent ^^) 

Just move home!

[*] Normally, sentences need at least one subject. E.g. "The room is too small" or "It is too small". But in thise case, I think it is okay because of the narration and flow of your story!

Good luck with your muscle-building! :)

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Color Guide 色の使い分けについて
Red - Errors / Corrections
Blue - Suggested improvements to tone and/or expression
Green - My general comments
赤 - 間違い／修正
青 - より自然な言葉遣い、表現の例
緑 - 私からのコメント