and how you can increase your activity in your profile?

by posting of course , you will get a maximum of 14 activity each two weeks

check this topic right here :

https://bitcointalk.org/index.php?topic=582736.0 It will tell you when the activity reset happens .

however and as I stated above you should be posting , If you have 14 posts and 14 activity , and even if the reset activity happens your activity won't rise unless you have posts .

Here is a list to know to understand more how it works and when you upgrade to other rank :

1 X 14 = 14

2 X 14 = 28

3 X 14 = 42 -- Jr. Member ( 1.5 month)

4 X 14 = 56

5 X 14 = 70 -- Member (2.5 month)

6 X 14 = 84

7 X 14 = 98

8 X 14 = 112

9 X 14 = 126 -- Full Member (4.5 month)

10 X 14 = 140

11 X 14 = 154

12 X 14 = 168

13 X 14 = 182

14 X 14 = 196

15 X 14 = 210

16 X 14 = 224

17 X 14 = 238

18 X 14 = 252 -- Senior Member (8.5 month)

19 X 14 = 266

20 X 14 = 280

21 X 14 = 294

22 X 14 = 308

23 X 14 = 322

24 X 14 = 336

25 X 14 = 350

26 X 14 = 364

27 X 14 = 378

28 X 14 = 392

29 X 14 = 406

30 X 14 = 420

31 X 14 = 434

32 X 14 = 448

33 X 14 = 462

34 X 14 = 476

35 X 14 = 490 -- Hero Member (1.3 years)

36 X 14 = 504

37 X 14 = 518

38 X 14 = 532

39 X 14 = 546

40 X 14 = 560

41 X 14 = 574

42 X 14 = 588

43 X 14 = 602

44 X 14 = 616

45 X 14 = 630

46 X 14 = 644

47 X 14 = 658

48 X 14 = 672

49 X 14 = 686

50 X 14 = 700

51 X 14 = 714

52 X 14 = 728

53 X 14 = 742

54 X 14 = 756

55 X 14 = 770

56 X 14 = 784 -- Legendary lucky rank starts (2 years)

57 X 14 = 798

58 X 14 = 812

59 X 14 = 826

60 X 14 = 840

61 X 14 = 854

62 X 14 = 868

63 X 14 = 882

64 X 14 = 896

65 X 14 = 910

66 X 14 = 924

67 X 14 = 938

68 X 14 = 952

69 X 14 = 966

70 X 14 = 980

71 X 14 = 994

72 X 14 = 1008

73 X 14 = 1022

74 X 14 = 1036

75 X 14 = 1050

76 X 14 = 1064

77 X 14 = 1078

78 X 14 = 1092 -- Not achieved yet, wait for this update -> Legendary rank achieved! (3 years)

I am still trying very hard, but it seems that I am stuck at hero for a very long time

Check list I posted above to know when you will upgrade more .