There are several reasons why you aren't seeing the results you want. (Especially at the rate you want.)
1) You are female. The hormonal environment of women's bodies (more estrogen vs. testosterone) makes it harder to build a lot of muscle. Unless you are going to mess with your hormones, which I don't recommend, there is nothing you can do about this.
2) Muscle growth is the product of progressive overload. You have to consistently ask your muscles to do more and more. The best way to do this is through a well designed, periodized strength training program. The factors you can play with to insure you are constantly challenging your muscles are: The number of sets and reps, your lifting tempo and frequency of workout. You don't necessarily need to to be sore after every workout.
3) Your caloric intake is too low at 1000 calories a day. At your height and weight, if you were totally inactive, you will need about 1100-1200 calories a day just to maintain your weight. Taking your activity level in to account you probably need somewhere around 1350-1500 calories a day. In order to gain muscle you need to eat approximately 1600-1800 calories a day. When you eat more calories than your body needs those extra calories will get stored. Regardless of how hard you are working out you will store some of those extra calories as fat.
The trick is eating enough food to gain weight while working hard enough to minimize fat storage. We typically gain fat and muscle together and lose fat and muscle together. If your goal is to gain muscle you will have to settle for storing some extra fat too.
If your goal is to get stronger and leaner you could accomplish this by eating around 1400-1500 calories a day and consistently strength training.
What is your goal? What are you ultimately trying to achieve? Do you really want more muscle mass or do you want to look leaner, more defined?
Vibrant Vegan |ˈvībrənt vēgən|:
An ebullient example of supreme health and fitness. A strong, fit, caring, compassionate, enthusiastic person who deliberately chooses to live a joyful, exuberant, vibrantly healthy, plant-powered life!