Climbing has many mental and physical benefits. It’s also a great social activity. Indoors, you can climb no matter what the weather is outside. The holds are kinder to the hands compared to being outdoors, so it gives you a chance to strengthen and condition the body (mainly the fingers) for the rigours of outdoor climbing. Depending on your level of experience and reasons for climbing, most climbing centres cater for all climbing styles: top roping, lead climbing, bouldering, traversing and, in some cases, ice climbing.
Go in with an open mind and give it time – climbing has a lot of failure, but you will get better. To save energy, work out routes before you attempt them!