If you have the desire to be more centred, that's a good sign!
Go with it!
If you have a desire - such as the desire to be more centred, loving and at peace - it's a sign that larger Forces are at work, and those Forces will partner with you. It's the only thing in this life that I can confidently guarantee you. You're not alone on this journey.
When I look back on my lifetime of praying and meditating I have never been alone. I have been drawn and supported by Love every step of the way, even when I fail miserably.
If you develop your capacity to be centred, it will become easier to do it in all kinds of conditions and circumstances. It will become your default operating system, and more and more your presence will become a gift of peace to others.
Practically, you can develop your capacity to be centered when you; prayerfully read books on the subject, spend time praying and meditating, join a contemplative group, spend time outdoors and absorb the pace of nature, find a spiritual director that practices according to your spiritual tradition, listen to the Spirit at work within you and respond.
If more of us decided to develop this capacity, there would be way more peace in this fractured world.