Before you even begin to think of how to increase your bench press, it is advisable to ensure that you are using a spotter for the sake of your own safety. There are many people out there who end up getting hurt because they try to get too heavy even without the spot.
It is important to ensure that you play it safe. If you have been training alone, you will need to start using the spot. This will be an important decision as when you roll that heavy weight from the ribcages to your thigh before sitting up with the weight while on the lap, this can end leaving some tracks that are pretty mean.
A good idea of engaging in any premise of a routine is a basic overload. This will mean that in each week, you will be putting in more stress on muscles. In order to achieve this, you will need to add some smaller amounts of weight to a bar every week. The progressive load will force your body to grow to enable it to adapt to increasing stress levels even though you may not be training to a level of failure apart from during the last sets.
As you bench, it is important to ensure that the eyes remain below the bar with the shoulder blades getting squeezed together and the chest getting held high. This will provide you with a better base from where to push from.
The point where the chest touches the bar will vary from one person to the other. The most important thing is to ensure that this feels natural without having to place a lot of stress on the shoulder. In order to achieve the best results, you will need to start with some lighter weights that what you normally use for the purposes of benching.