Excellent, recognising that you want to become stronger, will go a long way in you getting what you want. There are many different approaches, one is using weights and yes it can definitely get you strong, very strong. For most, all you have to do is add a little bit more to the bar in terms of weight each week and keep lifting. But this is a very simplified perspective. A better way and one in which will lead you to feel better and performing at your best for a very long time. Is learning how to move your own bodyweight through a variety of callisthenics skills.
Learning how to move your body well through a variety of movements, including pushing, pulling, rotating, falling and a whole host of other fantastic exercises will allow you to have fun and a varied approach to your exercise. As well as allowing you to take part in any other activities with far more capability than you may currently have.