Work out tips for beginners please?

Hello, I'm a 25yo twink (but have a huge belly fat). I want to start going to the gym and gain some muscles but honestly IDK where to start. My main problem is that whenever I try to research some routines online, I honestly feel that none of the work out routine fits me/my needs. Honestly the best way to visualize me is this photo(not me) but with a lot more tummy fat. Im 5'7 and only weigh 53kg so its really concerning for me to even have this much belly fat. I work on graveyard shifts (and its a deskjob) so i dont really get to move that much aside from my commute/travel which helps me reach an average of 3k-4k steps

Here's my problems/questions: 1. I cant afford a personal trainer as they charge an insane amount here in my country. And the last time I "hired" one years ago, He was disappointing to say the least. Since he's straight I could tell that he was somewhat disgusted with handling me and forced me to act manly. He did not listen to MY goals, instilled that I should just be thankful that he's training me and shit. 2. Im trying this new gym but its pretty far away from my place, so any dumbbell workouts would be great as its the only equipment I have at home. 3. Proper form, etc. Im kinda scared to start too because what if im doing it wrong and all that, any tips on this? 4. I mainly want to focus on my shoulders, chest, bi/triceps. Ik its important to hit all groups but I kinda want to achieve this goal first just to boost my confidence. 5. Supplements, any advise on which supplements I should be taking?

Thank you so much and please help ya boi out 🥲

Hello, I'm a 25yo twink (but have a huge belly fat). I want to start going to the gym and gain some muscles but honestly IDK where to start. My main problem is that whenever I try to research some routines online, I honestly feel that none of the work out routine fits me/my needs. Honestly the best way to visualize me is this photo(not me) but with a lot more tummy fat. Im 5'7 and only weigh 53kg so its really concerning for me to even have this much belly fat. I work on graveyard shifts (and its a deskjob) so i dont really get to move that much aside from my commute/travel which helps me reach an average of 3k-4k steps

Here's my problems/questions: 1. I cant afford a personal trainer as they charge an insane amount here in my country. And the last time I "hired" one years ago, He was disappointing to say the least. Since he's straight I could tell that he was somewhat disgusted with handling me and forced me to act manly. He did not listen to MY goals, instilled that I should just be thankful that he's training me and shit. 2. Im trying this new gym but its pretty far away from my place, so any dumbbell workouts would be great as its the only equipment I have at home. 3. Proper form, etc. Im kinda scared to start too because what if im doing it wrong and all that, any tips on this? 4. I mainly want to focus on my shoulders, chest, bi/triceps. Ik its important to hit all groups but I kinda want to achieve this goal first just to boost my confidence. 5. Supplements, any advise on which supplements I should be taking?

Thank you so much and please help ya boi out 🥲