The women in my family (mom's side) all have something special about them. I come from a distant family of gypsies. I have a strong extra sense. Different things happen for me....a few I have recognized very well. I feel like a have a sense with animals. For months before anything happened, I saw the death of family pets and it eventually happened the way I visoned it. Another thing I have happen is that I get really bad anxiety and overwhelming feelings. That usually happens when something bad is going on or is about to happen.....fight with the boyfriend....an illness...etc. Lastly, I can definitely sense spirits at certain times. With an ex boyfriend, we'd be laying in bed and I could just feel an evil presence as if something were next to the bed snarling at me. Nothing ever happened to me though but the spirit was attached to my ex. He was not a very good person. I just want to know how I can harness my abilities. My mom and I have different abilities so she can't really help like she wants to. I just want to develop them and to use them better to be a helpful person.
To make them sharper I suggest looking up the basics and energy manipulation. Before you do anything make sure you and your home is cleansed and you have active protection... To be a better pereon simply help people. You may do readings for them, attempt contact with a deceased loved one of them and such things.
What you're describing sounds very intuition based. As commonly as it is said, and as much as people are sick of hearing it, I generally suggest meditation as a means of exploring intuition (and most other things).
Why? It allows you to become more in tune with what you are feeling and why. Over time, after practice, you will be able to examine your thoughts and feelings as they happen and think to yourself "Is this a natural reaction to this moment, or is this a gut feeling I should be curious about?" With such understanding, time, and experience, and you will develop a greater knowledge of how yourself, and the world around you, thus being able to aptly recognize when your intuition is ringing alarm bells for you.
Many traditions have other methods for understanding this, but in the long run it all boils down to the same thing. You're someone who is just quite sensitive to your environment, and observant on a subconscious level. When you are able to see these things on a conscious level, that's when you can understand and react appropriately.