These sentences is perfect. 〜がる= want to〜 〜がるis not really used when you speak about yourself. 〜がるis used when you speak about other people's desire. Ex) 私は泳ぎたがる→× I want to swim Ex) 私の子供は泳ぎたがっていた→○ My son wanted to swim 〜がるis most frequently-used word to express other people's desire.