I think it's important that you don't relate drug use/getting drunk with being popular and getting a girlfriend, as that's what's come across from your topic. There's absolutely nothing wrong with being curious about alcohol and the like. It's perfectly natural, after all. If you want to experience drinking and getting drunk, that's fine. However, I'd reccomend not doing it alone. Go out with some friends and make sure your with other people - you won't have a good experience otherwise. As for cigarettes, if it's legal for you to buy them, I don't see the harm in trying them once. As long as you're aware of the consquences of doing regularly, I don't think you should be too hesitant about giving it a go.
As for illegal drugs, I can't really advocate you trying them, despite the fact that weed in particular is less dangerous than drinking alcohol. I think it's upto you. If you want to try anything stronger than weed, I'd reccomend you were with friends and especially with someone who is staying sober, just in case someone gets sick. As a teenager, it's totally natural to want to try these things, but just be aware that it IS illegal.
Being shy IS something you can overcome. By the sounds of it, you need to boost your confidence. But whatever you do, DON'T change who you are. Girls love guys who aren't afraid to be themselves and who aren't arrogant about themselves either. I'd reccomend joining activities, or joining clubs where you can meet people with similar interests - it means you'll have something in common with people and it can help build your social skills, and along with that, your confidence.
I'd reccomend you visit your doctor about your depression. I'm no professional, so a diagnosis from a health expert would be a good thing here. Even if you're not diagnosed with clinical depression, your doctor can always give you some professional advice about your feelings. Is there anything else that's troubling you asides from what you've listed, for example?
I hope that helped somewhat, if you want to talk about this, just post back in the topic, or feel free to PM me whenever :)
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oh, she's a dreamer ♥
be the change you wish to see in the world
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currently studying in france