Weed no longer gets me high.

Hello everyone, I just joined because I've tried like 4 different types of weed since I began consuming last year and it no longer gets me high. Now, I know most of you are thinking "well duh, your body just got more resistant to the effects", and sadly that is not the case, I've only been high twice and it was by having some chocolates I got last September and honestly, I loved the experience I had never enjoyed Game of Thrones so much in my life. Since then I've tried smoking both wax and cigars but I can't get high anymore and I'm 99% sure I'm not smoking it properly, a friend of mine told me that I shouldn't keep the smoke in my mouth before getting it to my lungs and some other guy told me that it made no difference, but I no longer know what to do, I want to get high and got 3 cigars this week since I'm on vacations so if anyone here has any tips or knows what I might be doing wrong then please tell me the proper way to smoke or something because I miss the experience. Below is the cigar I'm planning to smoke later today and hopefully it will get me high.