The answer is YES and NO.

Why can you get HIV/AIDS even after using a condom?

You can get HIV/AIDS even after using a condom if:

•  You wear/put on the condom the wrong way. This could cause an accident during sex like the condom slipping off your penis and your penis directly touches the walls of the vagina that could already be wet with vaginal fluids. 
•  Wear the condom in the wrong part of the body which is not the penis and then you had sex. 
•  Wear the condom sometimes and forget to wear it other times. 
•  If you used a condom that has already been used by another person that might be infected. 
•  If you used a condom that is expired or which due to poor storage got some damage like a piercing or tearing or got exposed to direct sunrays or heat. 
•  Possibly that the manufacturer made an error with that particular condom you chose to use.

Why you cannot  get HIV/AIDS after using a condom?

In case you use properly and consistently condoms which have been stored properly, you won’t get infected with HIV/AIDS.

To control sexual  feeling, one needs to learn how to have self control. Sexual feelings are normal and they can happen to anyone in  the stage of growth and development but you need to always make a second thought before any action you take, for example what an going to gain out of this what if I make somebody’s daughter pregnant so you can opt for being busy with extra curricula activities like sports which is a very good activity for young people to develop their talents.

You can only be sure if you go for an STI test where they can detect if its syphilis or another STI. Many girls suffer from itching private parts due to poor hygiene or Candidiasis which is not necessarily sexually transmitted. Go see a medical worker preferably a gynecologist to diagnose the infection. Most of these can be treated if detected early

Young girls can be of the same age but at different stages of development. We all grow at different rates and so experience life body changes differently. It is natural and normal for some girls to take longer in their period than others because our bodies and hormones respond differently. This should not worry you. However, if a young girl takes more than 8 days with a flow, then she should seek medical attention.

Love is two way. You cannot love someone who does not love you. If you can just be a friend to the boy and get to know him, that will be good. Do not force someone to love you. People have a right to decide who to love and relate with. If it doesn’t work out, then move on and forget him.  With time you will get someone you love and who also loves you.

Falling in love is normal and ok when it happens. What matters is how you handle your feelings. Do not be coerced into sex when you are not ready.  Do not go into sex simply because your friend sks you for sex.  Look at the consequences of early sex and what effect it will have on your studies  and make an informed decision. Love does not equal to sex. A true lover will always wait.  Abstain and carry out safe sex practices and you will enjoy your relationship.

Masturbation is the stimulation of one’s own sexual organ by hand (or by other means) to ejaculate and get sexual satisfaction.
Masturbation is one of the safer sex practices and it will help prevent transmission of STIs and HIV/AIDS. However, if one is not very clean, infections can be introduced so care need to be taken not to cause harm to one’s sexual parts.
The problem with it is addiction. When one gets addicted, one  may find problems adjusting to having normal sexual relations with others and it is also against some religious faith.