<p>Note that there have already been several threads on credit cards and credit scores.</p>
<p>"Having numerous Credit cards hurts your credit score, and so does applying for them."</p>
<p>While applying for too much credit DOES hurt your credit score, having too many credit cards DOES NOT. In fact, it generally helps your score by dropping your credit utilization.</p>
<p>"what are the keyfactors i getting the score UP. Ive only had my card for about 1.6 years so far."</p>
<p>The major thing that's going to drag down your score is the length of your credit history--that's always the primary problem for students--and there's nothing you can do about that other than be patient and wait.</p>
<p>There are a lot of things that go into your credit score, but the two major things that you should pay attention to are late payments and your credit utilization. Never pay late, and try not to carry a balance more than 50% of your available credit (note that you don't necessarily have to have a 0% utilization to have good credit).</p>
<p>Additionally, when you apply for new credit (or get car insurance in most states or apply for an apartment), someone checks your credit. This is called a "hard pull" (when someone other than you looks you up) and this remains on your report for two years. Having 2 or more hard pulls will drop your score, though not a great deal (this is why your score dropped when applying for a new loan). Note that is does not matter whether or not you are actually approved for credit.</p>
<p>The type of debt that you carry can also have an effect on your score. There are certain types of debt that are preferred--at least two major credit cards, student loans and a mortgage are considered healthy forms of debt. Store credit cards--cards from Best Buy, Sears, etc.--are considered "bad." Taking out a private student loan and paying on time will help your score greatly.</p>
<p>"Is it ok to cancel credit cards and then get a new one."</p>
<p>This is equivelent to shooting yourself in the foot. Unless there is an annual fee, there is often no reason to cancel a card. When you close an account, you decrease your credit utilization (since your available credit decreases). Subsequently applying for a new card will ding your credit when they check your credit report.</p>
<p>Additionally, your credit history length will decrease--one of the measures of credit history that credit agencies use is the average age of your accounts. If you close an older card and then open a new one, your average ago will drop quite a bit (although you don't have much history as it is).</p>