It is easier to get Gaelic into your life if you have someone else to speak it to and with and to help remind you to speak Gaelic. There are also many good ways to get lots of Gaelic in your daily life if there are no other Gaelic speakers around.
So here are some ideas for both situations.
Ask common questions in Gaelic: What are the questions that you ask every day? Things like "Dè an uair a tha e?" (what time is is?) are easy to add into your day and if you have some reasonably cooperative people around you might be able to get some non-Gaelic speakers to let you ask these questions too.
Pick words and phrases that you are only going to say in Gaelic (maybe not at work). You can use phrases like "glè mhath" in so many situations.
Make Gaelic fun. Play games in Gaelic, play mini golf in Gaelic, what ever you do for fun do it in Gaelic.
Set aside special time when you will only speak Gaelic. It could be once a day or once a week, maybe a Gaelic only brunch on the weekend or make an appointment with a friend to have a Gaelic conversation.
Turn on the Gaelic radio. Even if you are not actively listening listening to Gaelic does have benefits.
Write a Gaelic journal. Try to write a little Gaelic every day. It might be difficult at first but it is well worth it.
Read some Gaelic every day. Read a book or the news or an online article. Start with short bits and build up.
What are some of the ways you get Gaelic into your daily life?